CFG桩处理地基,当用管内泵压混合料时,坍落度宜为()。
A.60~80mm
B.80~100mm
C.120~160mm
D.160~200mm
参考答案:D
When they were dragging her away, the little girl reached out her hands in _______ want of her mother.
A.curious
B.desperate
C.sincere
D.serious
甲醇生产对于氧气纯度的要求时()。
A、大于88%
B、大于50%
C、大于89.6%
D、大于99.6%