题型：问答题 简答题 给下列短语选择相应的汉语意思。( ) 1. do my homework( ) 2. wash the clothes ( ) 3. write a story( ) 4. sit and rest A. 坐下休息B. 做作业C. 洗衣服D. 写故事 查看答案
题型：问答题 简答题 完形填空。 One day Tom was driving a taxi through a busy street. 1 a young man stopped his car and 2 his taxi. "To the station, hurry up!" he said. Tom did his 3 , but at every crossing there was a red light. The young manshouted, "Be 4 ! I don't want to miss the train." Tom shouted back, "I don't want to die here!" At that time he turned back and noticed the young man's face. "Oh , he is 5 thief." He thought, "I saw his face in the newspaper." 6 Tom had an idea. He drove 7 the red light and found a police car running 8 him. "Stop!" The young man said and jumped 9 . Tom caught hold of him and cried." Give me the money!" Just then two policemen came 10 . "He is the thief." Tom said. They caught the young man at once. "You did a good job. Thank you!" the policemen said to Tom. ( ) 1. A. Soon ( ) 2. A. got into ( ) 3. A. good ( ) 4. A. quick ( ) 5. A. the ( ) 6. A. Really ( ) 7. A. next to ( ) 8. A. before ( ) 9. A. out ( ) 10. A. on B. At once B. jumped up B. well B. quiet B. a B. Soon B. under B. after B. into B. up C. Suddenly C. got off C. best C. quickly C. an C. Long before C. through C. cross C. out of C. here D. Finally D. went out D. better D. quietly D. our D. Quick D. in D. into D. to D. in 查看答案
题型：问答题 简答题 在流行病学实验中，研究对象的随机分组是为了（）A.使实验组和对照组人数相同B.使实验组和对照组都受益C.增加参与研究对象的依从性D.平衡实验组和对照组已知和未知的混杂因素E.避免研究者偏倚 查看答案