患儿5岁，右下第二乳磨牙冠大面积龋坏，恒牙胚完好。根管治疗后

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问题单项选择题

患儿5岁，右下第二乳磨牙冠大面积龋坏，恒牙胚完好。根管治疗后选何种修复方法较好

A．玻璃离子粘固粉充填

B．银汞充填

C．光敏树脂修复

D．预成冠修复

E．水门汀充填

答案

参考答案：D

填空题

用所给词的适当形式填空：

1．September is the ________ (nine) month of a year.

2．Your English is getting better, but there is still room for ________ (improve).

3．Don't judge a person by ________ (appear).

4．As last, the farmers got in the crops before the rain. (succeed)

5．Last summer we went to England and the exciting holiday there was quite (forget ).

6．He made the most mistakes of all the students in the exam because of his (careful).

7．She dropped the old vase _________ (accident) and broke it into pieces.

8．He was one of the best _________ (contest) in the competition although he was unprepared.

9．I regret (lose) my expensive cellphone last week.

10．A _________ (balance) diet and plenty of exercise will help your hair shine.

问答题简答题

山东省陆地总面积多少？人口多少？