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【判断题】
习题课是数学课的主导类型。()
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】有关下列表述 ① 16 O 2 与 18 O 2 互为同位素 ②C 2 H 4 与C 6 H 12 互为同系物 ③淀粉与纤维素互为同分异构体 ④白磷与红磷是同素异形体,它们之间的转化是物理变化 ⑤碳与硅是同主族元素,故CO 2 与SiO 2 结构相似,性质相似 ⑥PCl 3 和BCl 3 分子中所有原子的最外层都达到8电子稳定结构
A.
都不正确
B.
只有①③⑤正确
C.
只有②④⑤正确
D.
只有①②⑥正确
【单选题】对于一定的物系,当温度升高时,溶解度系数H与相平衡常数m的变化为( )。
A.
H减小, m增大
B.
H减小, m减小
C.
H增大, m增大
D.
H增大, m减小
【单选题】Is the customer always right? The answer, it seems, depends on which country you are in. Shopping is very much a part of a country's culture, and attitudes to shopping and consumers vary from country ...
A.
retailers are under increasing pressure to improve their service and cater more for consumer demands
B.
America has been set as an example of good customer service
C.
they are aware that attitudes to shopping and consumers may vary in different countries
D.
consumers income has been reduced
【单选题】下列分子中,与甲烷互为同系物的是
A.
C 3 H 8
B.
C 4 H 8
C.
C 6 H 6
D.
C 3 H 6
【单选题】Is the customer always right? The answer, it seems, depends on which country you are in. Shopping is very much a part of a country's culture, and attitudes to shopping and consumers vary from country ...
A.
carries social and cultural values
B.
reflects the developmental stage of a country
C.
determines the way they socialize
D.
reveals their social status
【单选题】对于一定的物系,当温度升高时,溶解度系数H与相平衡常数m的变化为:
A.
H下降,m上升
B.
H上升,m下降
C.
H、m均下降
D.
H、m均上升
【多选题】下列构造中,( )不是岩浆岩的构造
A.
层理构造
B.
气孔构造
C.
层面构造
D.
片理构造
【多选题】采用分项详细估算法估算流动资金需估算流动负债,流动负债的构成有( )。
A.
存货
B.
应收账款
C.
预付账款
D.
应付账款
E.
预收账款
【简答题】对于一定的物系,当温度升高时,溶解度系数H与相平衡常数m的变化为( )
【单选题】What did Mr. Panda lose? A、 Money B、 Mobile C、 Computer D、 Wallet
A.
Money
B.
Mobile
C.
Computer
D.
Wallet
E.
1
F.
2
G.
3
H.
4
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