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Volleyball is a team sport played by two teams on a playing court divided by a net. The sport originated in the United States, and is now just achieving the type of popularity in the US that it has received on a global basis, where it ranks behind only soccer among participation sports. Today there are more than 24 million Americans who play volleyball. There are 800 million players worldwide who play Volleyball at least once a week. The object of the game is for each team to send the ball regularly over the net to ground it on the opponent’s court, and to prevent the ball from being grounded on its own court. The ball is put into play by the right back-row player who serves the ball by hitting it over the net to the opponent’s court. A team is allowed to hit the ball three times (in addition to the block contact) to return it to the opponent’s court. A player is not allowed to hit the ball twice consecutively, except when attempting a block. The rally continues until the ball touches the ground/floor, goes "out" or a team fails to return it to the opponent’s court or commits a fault. Volleyball scoring systems are as follows: RALLY POINT SCORING: The team winning a rally scores a point (Rally Point System). When the receiving team wins a rally, it gains a point and the right to serve, and its players rotate one position clockwise. The best of three or best of five games will win matches. Each non-deciding game will be won by the team that first scores 25 points with a minimum two-point advantage (no scoring cap). If there is a deciding game, it will be won by the team that first scores 15 points with a minimum two-point advantage (no scoring cap). SIDEOUT SCORING: Only the serving team may score a point, except in the deciding game when rally-point scoring is used. When the receiving team wins a rally, it gains the right to serve (also scoring a point in the deciding game), and its players rotate one position clockwise. Rotation ensures that players play at both the net and the back zone of the court. A team wins a game by scoring 15 points with a two-point advantage and wins the match by winning the best of three or five games. In the event of a 16-16 tie, the team scoring the 17th point wins a non-deciding game with only a one-point advantage. In a deciding game there is no point cap. What does the word "consecutively" (Line 6, Par
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Write a note of about 50-60 words based on the following situation: You have enjoyed very much the party held at your friend—Lucy’s home. Write to her a note to thank her for her hospitality and express your hope for more of such kind of parties to be held. Marks will be awarded for content, organization, grammar and appropriateness.
某食品公司工会向公司提出了签订集体合同的要求，公司表示同意。随后，工会与公司拟订了集体合同草案，工会还组织职工对集体合同草案进行了讨论。在工会与公司举行了合同签订仪式后，工会将集体合同报送了劳动行政部门。 根据国家有关规定，集体合同( )。
白附子具有的功效是（）
Think of the ocean on a calm day. Ignoring the rise and fall of the waves, you might imagine the surface was dead flat the whole way across. You’d be wrong. Hills and valleys are as much as a feature of the sea as the land, although on a much smaller scale. These undulations have a variety of causes. Tides, currents, eddies, winds, river flow and changes in salinity and temperature push the sea level up in some places and down in others by as much as 2 meters. Ever tried swimming uphill How do we map these oceanic hills and valleys First, we need to know what the planet would look like without them. This is where the geoid (大地水准面) comes in. It is a surface where the Earth’s gravitational potential is equal and which best fits the global mean sea level. It is approximately an ellipsoid, though uneven distribution of mass within the Earth means that it can vary from this ideal by up to 150 meters. The geoid represents the shape the sea surface would be if the oceans were net moving and affected only by gravity. Thus it can be used as a reference to measure any deviations in the ocean surface height that aren’t caused by gravity—the hills and valleys, for instance, or any regional increase in sea level. So how do you measure the geoid and the ocean’s irregular topography It’s complicated. Geophysicists calculate the geoid using data on variation in gravitational acceleration from several dozen satellites. The hills and valleys of the oceans are all very interesting, but can the geoid tell us anything more significant about the state of the planet It certainly can. Knowing accurately where the geoid lies and how the Ocean surface deviates from it will help meteorologists spot changes in Ocean currents associated with climate change. The circumpolar current around Antarctic is one they are particularly interested in. It can also predict local climate variations produced by events such as El Nino, El Nino keeps warm water that would normally move westwards close to the coast of South America, deprives Southeast Asia of its monsoon rains, and increases rainfall on the west coast of the Ametlca. Since temperature changes cause changes in sea level, geoid-watchers should be able to prepare us before it strikes. According to the passage, the word "geoid" probably means______.
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