基坑开挖期间，现场巡查时应检查有无（）现象及其发展情况。（） A.基坑外地面和道路开

高钙饮食能减低( )的生物利用率。

A．铁

B．锌

C．磷

D．镁

E．碘

词汇运用（共10小题；每小题1分，计10分。 每空一词）

小题1:It’s cold outside, you’d better ______________ (put) on your coat.

小题2:Do you know the _________(high) of that tall building?

小题3:We want to go to the park and enjoy ________________(we).

小题4:Little Tom fell off the desk, ______________  (lucky), he didn’t hurt himself.

小题5:This skirt is for one of their ___________(wife).

小题6:My cousin studies in a __________(初级的) school.

小题7:The little girl opened her eyes widely in the__________(黑暗)

小题8:People all over china celebrated the _________(成功)of Beijing Olympic games.

小题9:I wish I could spend as much time I can ________(放松) myself from hard work.

小题10:It’s _________(可能)to do so much work in such a short time.

等差数列

的前n项和分别为S_n和T_n，若

则

等于( )．

农业普查行业范围包括：农作物种植业、林业、畜牧业、渔业和（）

A.农林牧渔服务业

B.渔业服务业

C.种植业服务业

按照国家标准规定，普通级动物、清洁级动物、无特定病原体动物至少（）检测动物一次。

A.一个月

B.两个月

C.三个月

D.四个月