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问题
判断题
绘制通风系统图,可按或不按一定的比例尺绘制。
答案
参考答案:
对
选择题
Tina has been working so hard at English that she _______the find English exam.
A. is bound to passing
B. is bound to pass
C. will be bound to pass
D. will be bound to passing
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单项选择题
一般情况下吹扫高温热媒管线使用的是()。
A、一般压缩空气
B、仪表压缩空气
C、氮气
D、低压蒸汽
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