切牙连线略为平直,从尖牙的远中才转向后端,这种牙列形态是
A. 方圆形
B.卵圆形
C.尖圆形
D.方形
E.混合型
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Malassez上皮剩余的本质是
A. 残存的牙板上皮
B.缩余釉上皮
C.残存的上皮根鞘
D.釉小皮
E.星网状层
Tokyo, the capital of Japan, is one of the largest cities in the world. It is also one of the world’s most modern cities. Twice this century, the city was destroyed and rebuilt. In 1923 a major earthquake struck the city. Thousands of people were killed and millions were left homeless as buildings collapsed and fires broke out throughout Tokyo. It took seven years to rebuild the city. During World War II, Tokyo was destroyed once again. As a result of these disasters there is nothing of old Tokyo remaining in the downtown area.After the war, the people of Tokyo began to rebuild their city. Buildings went up at a fantastic rate, and between 1945 and 1960, the city’s population more than doubled. Because of the Olympic Games held in Tokyo in 1964, many new stadiums, parks and hotels were built to accommodate visitors from all over the world. As a result of this rapid development , however, many problems have arisen. Housing shortages, pollution and waste disposal have presented serious challenges to the city, but the government has begun several programmes to answer them. What is the main idea of the passage
Section A Directions: This part is to test your ability to give proper answers to questions. There are 5 recorded questions in it. After each question, there is a pause. The questions will be spoken two times. When you hear a question, you should decide on the correct answer flora the 4 choices marked A), B), C) and D) given in your test paper. Then you should mark the corresponding letter on the Answer Sheet with a single line through the center. May I borrow your dictionary for a minute?()
A. Sure. Here you are.
B. The dictionary is very expensive.
C. The dictionary is very useful.
D. Thank you very much.
丁香油
A. 是氧化锌丁香酚水门汀的基质并伴有消毒收敛作用
B.可增加氧化锌丁香酚水门汀的粘附性与韧性
C.可增加氧化锌丁香酚水门汀的强度,促进固化
D.作为氧化锌丁香酚水门汀的另一类基质材料与氧化物反应
E.能加速氧化锌丁香酚水门汀的固化