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【简答题】
非极性共价键:()和化学环境完全相同的原子成键,成键电子云对称分布在两个原子之间,所形成的键叫做非极性共价键。
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皮皮学刷刷变学霸
举一反三
【简答题】If others agree, they go a with you.
【单选题】I agree ______ some ideas and disagree to ______. [ ]
A.
to, another
B.
to, others
C.
with, the other
D.
with, others
【简答题】葡萄糖酸钙片的含量测定:取本品(规格 0.5g)20片,精密称定为10.9608g,研细,精密称取片粉1.06g,置100ml量瓶中,加水约50ml,微热使葡萄糖酸钙溶解,放冷至室温,在用水稀释至刻度,摇匀,用干燥滤纸滤过,弃去初滤液,精密量取续滤液25ml加水75ml。加氢氧化钠试液 15ml 和钙紫红素指示剂约 0.1g ,用乙二胺四醋酸二钠滴定液( 0.05 022 mol/L )滴至溶...
【单选题】What does the author tend to agree?
A.
Critical thinking serves others' interests.
B.
Critical thinking is valuable.
C.
Critical thinking should be encouraged.
D.
Critical thinking can accomplish a lot.
【单选题】Many Americans agree to adopt a stricter policy on weapon control ______ others don't agree, and they believe they need weapons to protect themselves.
A.
otherwise
B.
while
C.
on the contrary
D.
in contrast
【单选题】A __ person does not like to agree with others.
A.
noisy
B.
curious
C.
contrary
D.
kind
【简答题】Many people think name is very important for a person, but others dont agree. In this section, you are asked to write an essay on the importance of a name. You can provide specific reasons and example...
【单选题】It is ______ of him to leave the classroom just because the others didn't agree with him.
A.
childish
B.
childlike
C.
pretty
D.
natural
【单选题】－ is impolite to laugh at others. －I agree with you. [ ]
A.
That
B.
This
C.
It
D.
Three
【单选题】– No one likes a person never cares for others. – I agree with you.
A.
whom
B.
who
C.
which
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