安防工程验收委员会（验收小组）人员组成中，技术专家应不少于（）。
A.10%
B.20%
C.30%
D.50%
参考答案：D
搜查时，必须有被搜查人或者他的家属、邻居或者其他见证人在场。 ( )
用所给动词的适当形式填空。
l. My father often helps my mother____(cook).
2. Would you like____ (come) over to my house for dinner tomorrow evening?
3. It's important for us____ (learn) English well.
4. If you don't hurry,you____(be) late.
