问题
单项选择题
对于刷牙祛除菌斑的提法，下面哪种更好些
A．晚上刷牙
B．早上刷牙
C．认真刷牙
D．有效刷牙
E．饭后刷牙
答案
参考答案：D
解析：刷牙祛除菌斑应提倡有效刷牙，无论何时刷(早晚或饭后)或何种方法刷，只要能达到祛除菌斑的效果，就应提倡。
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对于刷牙祛除菌斑的提法，下面哪种更好些
A．晚上刷牙
B．早上刷牙
C．认真刷牙
D．有效刷牙
E．饭后刷牙
参考答案：D
解析：刷牙祛除菌斑应提倡有效刷牙，无论何时刷(早晚或饭后)或何种方法刷，只要能达到祛除菌斑的效果，就应提倡。
| 从方框中选择最佳选项完成对话，有两项多余。 | |
Tom: 1_______ Father: Let me have a look. Tom: Here you are. Father: You got an A in English. 2_______ Tom: He said that I was good at speaking and listening. Father: 3_______ Er... your math grade is not good. What did your math teacher say? Tom: He said that I was kind of lazy. 4_______ Father: Why do you say so? Tom: I was really hard-working. 5_______ Father: Oh! I think you need a tutor. |