把分组标志分别放在统计表的横行位置和纵栏位置编制成的统计分组表,叫做双向复合分组表。( )
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—This cake’s delicious! Did you make it yourself —____ My sister got it from the bakery.
A. Really
B. Of course.
C. You must be joking!
D. You are welcome.
Text 4 A pure virus (病毒) could be kept in a bottle, just like hundreds of other chemicals. Yet, when a virus is placed on a living thing, it comes to life. As long as it is on a living material, it grows. A difficult question still remains - what is a virus Is it living or chemical Men of science had always thought life and not-life to be as different as black and white. With the discovery of the virus, they became aware of a grey area that was neither black nor white. Until the 1930’s, it was accepted that there was also a great difference in size between the largest chemical molecules (分子) and the smallest living things. As new and much finer filters (过滤器) were invented, men were able to measure viruses. The first virus to be measured was found to be about 100 millimicrons (毫微米) across. The largest known chemical molecule measures only 22 millimicrons. The smallest living thing measures almost seven times that size or 150 millimicrons. When viruses were measured, they were found to range in size from 16 millimicrons to 300 millimicrons. Most were found to be larger than the largest chemical molecules and smaller than the smallest living things. The answer to the puzzle - what is a virus - must be that it is both living and not living. In a living cell, it is a live thing. In a bottle, it is nothing more than a chemical. We now realize that the virus is actually a link between life and not-life. What is this text mainly about()
A. How viruses should be understood.
B. The effect viruses have on living things.
C. How filters are used in studying viruses.
D. The researches scientists do with viruses.
I’ll be in ____ next room, so give me ____ call if you need any help.
A. the; a
B. /; a
C. /; the
D. the; the
ext 1 Jumanji is a story for children about a very strange game - a game that becomes far too real and frightening for the players. It was a story by Chris Van Allsburg, which was later filmed in 1996, starring the famous American actor Robin Williams. The story begins in 1869 in New Hampshire, America. Two young brothers bury a box under some trees. A hundred years later, in 1969, a boy, Alan Panish, finds the box and takes it home. He’s unhappy that his father may want to send him to a boarding school (寄宿学校). Alan’s friend Sarah arrives, and they open the box. Inside is a board game. At the start of the game, some words appear: “Do you want to leave the world behind and go back to the past Then this is the game for you.” Suddenly Alan finds that he is disappearing into the game. The story has a deep meaning. Through his adventures Alan learns something important - if you confront(面对) your fears, your problems will go away. Alan turns to face Van Pelt, the hunter who is trying to kill him. In doing so, he completes the game and returns to reality. Then he finds that his father is not going to send him to boarding school after all. In Jumanji, time is “elastic”. The film director Stephen Spielberg’s “Back to the Future” films play with time in the same way. Top scientists even tell us now that time travel is theoretically(理论上) possible! From the story we learn that Alan is a boy who ()
A. is afraid of his father
B. dislikes his study at school
C. was bom a hundred years ago
D. goes back to the past in the game