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【单选题】
具有抗疟作用的成分是
A.
穿心莲内酯
B.
丁香酚
C.
青蒿素
D.
薄荷醇
E.
丹参酮Ⅱ A
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参考答案:
举一反三
【单选题】李先生现有资金30万投资在固定收益率为8%的理财产品,那么李先生投资改产品( )年后可以实现资金翻一番。
A.
7
B.
8
C.
9
D.
10
【单选题】What does Daniel find most attractive about his profession?
A.
visibility
B.
high salary
C.
high pressure
D.
feeling of accomplishment
【单选题】RLC 并联电路原处于感性状态,若保持电源频率不变,调节可变电容 C 使其发生谐振,则应使 C 值( )。
A.
增大
B.
减小
C.
不变
D.
需经试探方知其增减
【单选题】Please give me a piece of cake.
A.
部分
B.
(一)双
C.
(一)块;件
【单选题】The used old small typewriter is really ______.
A.
a piece of cake
B.
a piece of work
C.
a piece of junk
D.
a valuable machine
【单选题】What does Daniel Wilkins believe?
A.
The bill is good for gender equality.
B.
More women have been killed on duty.
C.
Military service is not necessary for women.
D.
A military draft should have been introduced earlier.
【单选题】Can you give me some _________ of advice?
A.
piece   
B.
a piece   
C.
one piece  
D.
pieces
【单选题】A Guide to Eating for Sports There is a piece of good news that eating to reach your peak performance level likely doesn't require a special diet or supplements. It's all about working the right foods...
A.
Y
B.
N
C.
NG
【单选题】两根不同材料制成的梁,若截面尺寸和形状完全相同,长度及受力情况也相同,那么对此两根梁弯曲变形有关量值( )。
A.
最大正应力相同
B.
最大挠度值相同
C.
最大转角值相同
D.
强度相同
【单选题】Lucy said that she had never heard _________ music before. [     ]
A.
such a beautiful piece of
B.
so a piece of beautiful
C.
so beautiful a
D.
such a beautiful
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