心电图检查时红色导联线应连接在（）。
A.右上肢
B.右下肢
C.左下肢
D.胸前
E.左上肢
参考答案：A
根据所给图示或短文内容补全下列空格, 注意有的空不只一个单词.
Dear Maria,
I enjoyed __1__ your "What's Cool?" article in the school magazine, __2__ you didn't ask me
the questions. Here's what I think. I __3__ the hair clip, I __4__ the belt, and I __5__
the sunglasses. I __6__ the key ring, I __7__ the scarf, I __8__ the watch, and I __9__
the wallet. Can you please put my __10__ in next month's magazine?
Yours sincerely,
Judy
钨极氩弧焊时，直流正接适用于焊接（）。
A、低碳钢及低合金钢
B、铝及铝合金
C、不锈钢
D、钛及钛合金
the hair clip, I __4__ 
the belt, and I __5__ 
the key ring, I __7__ 
the scarf, I __8__ 
the watch, and I __9__ 