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【单选题】
Molish反应的阳性特征是
A.
上层显红色,下层有绿色荧光
B.
两液交界处呈紫色环
C.
两液交界面呈蓝色环
D.
不分层,有橙红色沉淀产生
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【单选题】“对一个国家来讲,就要有民气;对一个队伍来讲,就要有士气;对一个人来讲,就要有志气。有了这三股气,就没有战胜不了的困难。会战职工正是凭着这股劲,高水平、高速度拿下大油田,真正为国争了光,为民族争了气。”这段话提到的大油田是哪个油田:
A.
大庆油田
B.
玉门油田
C.
胜利油田
D.
长庆油田
【多选题】苦杏仁甙经水解后产生 、 及 。
A.
氢氰酸
B.
苯甲醛
C.
脂肪油
D.
葡萄糖
E.
生物碱
【单选题】Hundreds of young people joined in digging at Masada because______.
A.
they were highly paid
B.
they were pure followers of the belief
C.
they wanted to prove the story was true
D.
they respected Yadin very much
【简答题】酒店法律关系的内容是什么?
【单选题】By choosing to go into business for himself, Jim Lazar foregoes the possibility of getting a highly paid job with a large company. This is called a(n):
A.
Sunk cost.
B.
Out-of-pocket cost.
C.
Opportunity cost.
D.
Joint cost.
【单选题】同步发电机并网运行时,要增大向电网输出的有功功率,应()。
A.
增加原动机的输入功率
B.
增大励磁电流
C.
增加定子绕组匝数
D.
减小励磁电流
【判断题】大脑皮层运动功能通过锥体系和锥体外系的协同活动实现的,在锥体外系保持肢体稳定、适宜的肌张力和姿势协调的情况下,锥体系执行精细的运动。
A.
正确
B.
错误
【单选题】A controversy erupted in the scientific community in early 1998 over the use of DNA (deoxyribonucleic acid) fingerprinting in criminal investigations. DNA fingerprinting was introduced in 1987 as a me...
A.
would have to leave their fingerprints for further investigations
B.
could easily escape conviction of guilt
C.
would have to submit evidence for their innocence
D.
could be convicted of guilt as well
【单选题】“对一个国家来讲,就要有民气;对一个队伍来讲,就要有士气;对一个人来讲,就要有志气。有了这三股气,就没有战胜不了的困难。会战职工正是凭着这股劲,高水平、高速度拿下大油田,真正为国争了光,为民族争了气。”这段话是谁说的:( )
A.
余秋里
B.
康世恩
C.
王进喜
D.
周恩来
【多选题】远程连接到某网络设备执行配置,可使用如下( )连接。
A.
Console
B.
AUX
C.
Telnet
D.
SSH
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