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【判断题】
聚乙烯是通用塑料中唯一能在水中煮沸,并能经受 135 摄氏度的消毒温度的品种,因此可制造输送热水的管道。
A.
正确
B.
错误
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【单选题】听力原文:You should have listened to me! If we hadn't made the wrong turn, we'd have been on time. They must have waiting too long to be patient. (26)
A.
If we want to be on time and don't let them, we must make a right turn.
B.
Though we went the wrong way and were late, they must have been waiting patiently for us.
C.
Since we're not late, we must have come the right way.
D.
We're late because we went the wrong way.
【单选题】下列不属于旅游产品的促销方式的是( )。
A.
宣传资料
B.
营销公关
C.
销售推广
D.
旅游线路设计
【简答题】根据伤口清洁和污染程度,正确的换药顺序是——,——,——。
【单选题】配合物 [Cr(OH)(C 2 O 4 ) (H 2 O) (en)] 的系统命名法名称为( )
A.
一羟基 一草酸根 一水 一乙二胺合铬 ( Ⅲ )
B.
一草酸根 一水 一乙二胺合铬 ( Ⅲ )
C.
一羟基 一草酸根 一水 一乙二胺合铬
D.
一羟基 一草酸根 一乙二胺合铬 ( Ⅲ )
【单选题】The poor old consumer! He'd have to pay a great deal more if advertising didn't create mass market for products. It is precisely because of the heavy advertising that consumer goods are so cheap. But...
A.
to introduce their new functions.
B.
to compare them with new products of the same sort.
C.
to tell that they are still available
D.
to correct any impropriate information about them
【简答题】旅游产品的促销方式
【单选题】配合物[Cr(H 2 O)(en)(C 2 O 4 )(OH)],中心原子Cr的配位数为(    )
A.
4    
B.
5    
C.
6    
D.
7
【简答题】配合物[Cr(H 2 O)(en)(C 2 O 4 )(OH)]的命名(),配位原子是(),配位数()。
【简答题】If we have the wrong signals, say the Netflix signals, we get fat cells instead of muscle. These scaffolds are made of a [5] _____ of different things,
【单选题】配合物【Cr(H 2 O) 5 Cl】(OH) 2 ()
A.
+2
B.
+3
C.
+4
D.
+5
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