在有毒介质的环境中进行仪表安装需采用（）措施。
A.设备排风装置
B.管道测试
C.设备耐温测试
D.管道强度测试
参考答案：A
用所给单词的适当形式填空。
1. I like watching TV and ______ (play) tennis.
2. My sister often plays tennis with ______ (she).
3. Her favorite ______ (subject) in school are music and P.E.
4. Kate's parents ______ (not) like playing computer games.
5. Could you tell me something about ______ (you), Jack?
中国煤炭中Vdaf>37%为（）。
A、无烟煤
B、烟煤
C、褐煤
D、泥煤
