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【判断题】
胸廓的骨骼，由胸骨(1块)、肋骨(12对)、肋软骨(10对)和胸椎(12节)组成A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The rider uses ( ) as a means of communicating their wishes through to the horse.
A.
aids
B.
rein
C.
bridle
D.
stirrup
【判断题】The natural aids that the rider uses are the hand, leg, seat,body and voice aids.
A.
正确
B.
错误
【单选题】Which of the following is not true?
A.
The rider helped the farmer.
B.
The rider didn't ask. the farmer for money.
C.
The rider wanted the farmer to help anyone else in trouble.
D.
The rider wanted some wheat.
【单选题】电路及参数如图所示,T 1 、T 2 、T 3 均为硅管,可调电阻R E2 当前调节到的阻值为1.3KΩ,设β1=β2=50,β3=80,| V BE |=0.7V,当| V i |=0时时| V o |=0。当输入为0时,图中 I E 、 I C1 、 I C2 、 I C3 分别为()
A.
1.062mA, 0.531mA, 0.531mA, 1.21mA
B.
1mA, 0.5mA, 0.5mA, 1mA
C.
2.4mA, 1.2mA, 1.2mA, 2.63mA
D.
条件不充分，无法确定
【简答题】a___________ v. to take as a fact ; suppose
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