施工安全管理计划应在项目开工前编制，经( )批准后实施。
A．项目技术负责人B．项目经理C．专职安全员D．监理工程师
参考答案：B
用括号内所给单词的适当形式填空。
1．In big cities, there are many tall _________ (building).
2．I'll probably go _________ (skate) and swimming next year.
3．My cousin was _________ (write) a letter to her mother when I saw her.
4．In English. I'm _________ (good) at reading than listening.
5．My grandparents are over eighty, but they are in good _________ (healthy).
变速箱(车床用)
