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【单选题】
根据你所学化学知识,判断下列说法正确的是(  )
A.
缺氟容易产生龋齿
B.
缺乏维生素A会引起坏血病
C.
水可以防止煤气中毒
D.
进入矿井前要先做灯火实验
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举一反三
【单选题】Which of these does not belong with the others?
A.
lipase
B.
sucrase
C.
maltase
D.
lactase
【单选题】Which of these does NOT describe Rani ki Vav? (Text 6A)
A.
a magnificent temple
B.
a well with steps
C.
a memorial to a dead king
D.
an 11th-century structure
【单选题】Which of these does not help a speech reach an audience?
A.
long complex sentences
B.
simple vocabulary
C.
concrete images
D.
repeating certain phrases
【单选题】Which of these does a theme not include?
A.
A color palette
B.
Fonts
C.
Graphic effects
D.
Sample content
【单选题】西餐礼仪中,吃面包应该( )
A.
用刀切
B.
用叉叉
C.
用食指和拇指把面包撕下一小块放入口中
D.
把整块面包抹上黄油吃
【单选题】Which of these does not fit in the same age group as the others?
A.
dieting should be discouraged
B.
more calories are needed
C.
immune system becomes mature
D.
encourage sexual health and abstinence
E.
substance abuse is a concern
【单选题】在编辑样条曲线时,最多可以新插入多少个控制点?()
A.
0
B.
1
C.
2
D.
无限制
【单选题】To which of these does IP multicast send packets?()
A.
a single host
B.
a subset of hosts
C.
all hosts sequentially
D.
all hosts simultaneously
【单选题】在编辑样条曲线时,最多可以新插入多少个控制点?( )
A.
无限制
B.
0
C.
1
D.
2
【单选题】Which of these does not describe Oliver as a character?
A.
Flat
B.
Protagonist
C.
Dynamic
D.
Static
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