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【判断题】
在PowerPoint2010中按功能键[F7]的功能是拼写检查
A.
正确
B.
错误
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参考答案:
举一反三
【简答题】A.It can cause flooding in an B.It can carry diseases that affect animals. C.It can introduce too much salt into the soil. D.It can divert water from important crops.
【单选题】-Can I help you with your suitcase? -( ).
A.
I have no idea
B.
No, no. I can carry it myself
C.
That's a good idea
D.
Thank you. I can manage myself
【简答题】指出下列物质在100%H2SO4中的酸碱行为: HNO3;CH3COOH;HClO4;C2H5OH;H2NCONH2;SO3
【简答题】指出下列物质在100%H 2 SO 4 中的酸碱行为(写出反应方程式): HNO 3 ,  CH 3 CO 2 H,HClO 4 ,  C 2 H 5 OH,H 2 NCONH 2 ,  SO 3
【单选题】Only in this way ____ the plan successfully.
A.
we can carry out
B.
we can agree on
C.
can we agree on
D.
can we carry out
【简答题】As with anything______(carry)to excess,daydreaming can be harmful.
【简答题】A.It can cause flooding annually. B.It can carry diseases that affect animals. C.It can introduce too much salt into the soil. D.It can divert water from important crops.
【判断题】实际尺寸就是真实的尺寸,简称真值。
A.
正确
B.
错误
【简答题】重铬酸钾是工业生产和实验室的重要氧化剂,工业上常用铬铁矿(主要成份为FeO·Cr 2 O 3 )为原料生产,实验室模拟工业法用铬铁矿制K 2 Cr 2 O 7 的主要工艺如下,涉及的主要反应是:6FeO·Cr 2 O 3 +24NaOH+7KClO 3 12Na 2 CrO 4 +3Fe 2 O 3 +7KCl+12H 2 O, 试回答下列问题: (1)在反应器1中,有Na 2 CrO 4 生成,...
【单选题】The man can carry the box.
A.
True.
B.
False.
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