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【简答题】
同学们通过学习化学，可以知道： （1）石灰水中溶质的名称是______； （2）形成“温室效应”的主要气体是______（用化学符号表示）； （3）1mol 水中约含_______个原子； （4）地壳中含量最多的金属元素的符号是______； （5）鱼类可在水中呼吸，是因为水中溶有一定量的______（用化学符号表示）； （6）量取7.2mL 溶液，需要一种合适的玻璃仪器是______．
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【简答题】Complete the passage with the words from the box. A. achievement B. asset C. management D. salary E. satisfaction Most people work because they need to earn a 1 __________, but money ...
【单选题】听力原文：Sandy is on crutches today, so he must have hurt his leg on his ski trip. It's unwise for him to go skiing since he is not good at it. (26)
A.
Sandy probably had a skiing accident.
B.
Sandy tripled and fell on Tuesday.
C.
Sandy is on the last leg of his trip.
D.
Sandy is probably skiing today.
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【单选题】He must have had a very ____ holiday. You can see the ____smile on his face.
A.
exciting; exciting
B.
excited; excited
C.
excited; exciting
D.
exciting; excited
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【简答题】Decide which of the words given below would best complete the passage if inserted in the corresponding blanks. The words can be used ONCE ONLY. A. as B. aimless C. bother ...
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【单选题】对于指令“ G75 R (e) ; G75 X(U) Z(W) P ( Δ i) Q ( Δ k) R ( Δ d) F ;”中的“ P ( Δ i) ”,下列描述不正确的是( )。
A.
每次切深量
B.
直径量
C.
始终为正值
D.
不带小数点值
【简答题】“Tear’em apart!” “Kill the fool!” “Murder the referee!” These are common remarks one may hear at various sporting s. At the time they are made, they may seem innocent enough. But let’s not kid ou...
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