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【多选题】
请选择正确的答案填空: 差分放大电路是为了_____而设计的, 它主要通过_____来实现。A.
提高放大倍数
B.
提高输入电阻
C.
抑制温漂
D.
增加一级放大电路
E.
采用两个输入端
F.
电路结构和参数的对称性
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举一反三
【单选题】When we climbed up to the top of the mountain, we were all _______.A．tired and out of the breath
A.
24. When we climbed up to the top of the mountain, we were all _______. A．tired and out of the breath
B.
tiring and short of the breath
C.
tired and out of breath
D.
tiring and short of breath
【单选题】When we climbed up to the top of the mountain, we were all _______. [ ]
A.
out of the breath
B.
short of the breath
C.
out of breath
D.
short of breaths
【单选题】We climbed to the top of Dayan Pagoda at night , believe it or not, ______ we could see a Buddha image in the sky.
A.
from there
B.
where
C.
from where
D.
there
【单选题】When we climbed to the top of the mountain, we had a good ______ of the whole city.
A.
scenery
B.
scene
C.
view
D.
sight
【单选题】When we climbed up to the top of the mountain, we were all __________ ,but we were very happy.
A.
out of sight
B.
out of reach
C.
out of breath
D.
out of er
【单选题】We climbed a tree, and all of a sudden it _______ to us that we were rather big to be up in a tree. [ ]
A.
struck
B.
lighted
C.
occurred
D.
came
【简答题】在条件稳定常数一定的条件下,金属离子的浓度越大滴定曲线的起点越 __ ___ (填“低”或“高”),滴定突跃的范围越 ___ ____ 。(填“大”或“小”)
【单选题】We climbed higher up the mountain so that We could get a better ．
A.
． view
B.
． idea
C.
． point
D.
． opinion
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