施工现场对毗邻的建筑物、构筑物和特殊作环境可能造成损害的，建筑施工企业（）采取安全防护措施。
A.应当
B.可以
C.不得
D.自行决定是否
参考答案：A
根据首字母及句意补全单词
1. Could you buy some drinks and s ?
2. My bicycle is broken. Could I b yours?
3. Could you please help me take c of my grandma for a moment?
4. The floor is so dirty that you must s it right now.
5. Your clothes are very clean. Do you often do the l on Sunday?
内生矿床有哪几类？
