某主要测量项目的试验数据中有()以上出现异常或矛盾,该工况试验应作废。
A、1/5
B、1/4
C、1/3
D、1/2
参考答案:C
下述哪些属于粘胶类栓塞物质()
A.氰基丙烯酸异丁酯
B.乙基阻塞胶
C.蓝色组织胶
D.EVAL
E.聚乙烯醇
--- Can your factory really afford ____ food for the people in the flooded area?
--- I believe we can because we have ____ workers.
A.anumberof;plentyof
B.alargeamountof;thenumberof
C.plentyof;thenumberof
D.alargeamountof;anumberof