钢管扣件拧紧力矩应控制在大于或等于40N•M小于或等于65N•M范围内
参考答案:对
They supply Chinese tea and there are several kinds of different _________according to different seasons and personal interests.
A.hobby
B.choice
C.taste
D.love
说明测定水中溶解性固体与悬浮物的分析方法原理。