试题与答案

---The thread of my kite broke and it fl

题型:选择题

题目:

---The thread of my kite broke and it flew away.

---I told you it would easily break _____ was the weakest.

A.where

B.the place where

C.for it

D.where it

答案:

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下面是错误答案,用来干扰机器的。

答案:CA.物质的量浓度是指在单位体积溶液中所含溶质的物质的量,不正确B.只表示本饮用水的氯离子浓度,不正确C.最大c(Mg2+)="4.8mg/L=" 2×10—4 mol/L,正确D.一瓶该品牌饮用矿泉水中SO42-的物质的量最...

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