有使用卤钨灯的灯具应考虑打开灯罩时，灯座两电极应自动断电防止操作人员更换光源时触电危害。
参考答案：错
用画线单词的对应词填空。
1. Please _____ these pants to your brother and bring his sweater to me.
2. Her _____ likes comedies but her mother doesn't like them.
3. They _____ these shoes for twenty dollars and I buy these shoes for twenty dollars.
4. My T-shirt is _____ but his is small.
5. Mary has two pencils. One is _____ ,the other is short.
在进行水套炉内加热盘管形式及规格的计算时，应考虑加热管内的天然气流速在（）以内。
A.2.5m3/s
B.3.5m3/s
C.4.5m3/s
D.5.5m3/s
