知母生品苦寒滑利,长于(),生津润燥。
参考答案:清热泻火
.Millions of pounds' worth of damage___________by a storm which swept across the southeast of China last month.
A.has been caused
B.had been caused
C.will be caused
D.will have been caused
钛管焊接所用的氩气的纯度直接影响焊接质量,要求含氩量应不小于______。
A.95.5%
B.85.5%
C.90.5%
D.99.5%