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【单选题】
在下列一组数中,数值最小的是( )。A.
（1789）10
B.
（1FF）16
C.
（10100001）2
D.
（227）8
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反馈参考答案：
举一反三
【多选题】以下哪些选项是跨境电子商务存在的问题? ( )
A.
跨境电子商务比例严重失衡
B.
产品同质化严重，出口盈利能力有待进一步提升
C.
通关成为跨境电子商务交易最大壁垒
D.
跨境电子商务人才缺失
【单选题】Question 6 is based on the news report you have just heard.
A.
. A) It intends to keep its traditional diet.
B.
B) It wants to expand its own farming.
C.
C) It is afraid of the spread of disease.
D.
D) It is worried about unfair competition.
【判断题】在一棵度为 4 的树中,若有 20 个度为 4 的结点, 10 个度为 3 的结点, 1 个度为 2 的结点, 10 个度为 1 的结点,则树 T 的叶结点个数是 81 。
A.
正确
B.
错误
【单选题】在一棵度为4的树T中,若20个度为4的结点,10个度为3的结点,1个度为2的结点,10个度为1的结点,则树T中的叶结点个数是( )。
A.
41
B.
82
C.
113
D.
122
【单选题】Question6 is based on the news report you have just heard.
A.
Engineering problems.
B.
The air pollution it produced.
C.
Inadequate funding.
D.
The opposition from the military.
【单选题】Question 6 is based on the news report you have just heard.
A.
Engineering problems.
B.
The air pollution is produced.
C.
inadequate funding.
D.
The opposition from the military.
【单选题】Question 6 is based on the news report you have just heard. 6 .
A.
Zimbabweans stayed away from voting.
B.
Zimbabweans were enthusiastic about voting.
C.
Only a f ew Z imbabweans t urn ed up to vote.
D.
Zimbabweans believed that Mugabe would win.
【单选题】在一棵度为 3 的树中,若度为 3 的结点有 2 个,度为 2 的结点有 1 个,度为 1 的结点有 2 个,则叶子结点数为 ( ) 。
A.
5
B.
6
C.
7
D.
8
【单选题】Question 6 is based on the news report you have just heard.
A.
The boy's father.
B.
Soldiers, police and volunteers.
C.
Japan's military.
D.
Child psychiatrists.
【单选题】Question 6 is based on the news report you have just heard.
A.
Deliver scientific equipment to the moon.
B.
Approve a new mission to travel into outer space.
C.
Work with federal agencies on space programs.
D.
Launch a manned spacecraft to Mars.
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