问题
多项选择题
在堆取料作业时,斗轮与煤场地面的高度哪些符合条件()。
A、0.4米;
B、0.6米;
C、0.7米;
D、0.8米。
答案
参考答案:B, C, D
在堆取料作业时,斗轮与煤场地面的高度哪些符合条件()。
A、0.4米;
B、0.6米;
C、0.7米;
D、0.8米。
参考答案:B, C, D
补全对话。 | |
A: Mom! 1_____ I've pressed the START button, and the power is on,but it doesn't work. B: Let me have a check. 2_____ A: Twice. 3_____ B: I'm afraid so. Look! This is the START/HOLD button.It means "to stop for a while". But if you press it twice,it'll hold. 4_____ A: That's why it isn't working now. 5_____ B: Just press the same button again. And the machine will start working. A: OK. I'll take your advice.
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