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【单选题】
在铰链四杆机构中,不与机架直接连接的杆称为()A.
机架
B.
连架杆
C.
连杆
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皮皮学刷刷变学霸
举一反三
【单选题】According to the doctors, the baby boy might face a _____ chance of developing a full-blown case of AIDS.
A.
25%
B.
40%
C.
55%
D.
70%
【单选题】下列关于尼可刹米的性质，叙述错误的是
A.
为无色或淡黄色油状液体
B.
有引湿性
C.
具有酰胺键，但一般条件下较稳定
D.
与碱共热，产生的氨气可使润湿的红色石蕊试纸变蓝
E.
又名可拉明
【单选题】Things might have been much worse if the mother on her right to keep the baby.
A.
has been insisting
B.
had insisted
C.
would insist
D.
insisted
【单选题】在如图甲所示的电路中,当闭合开关后,两个电流表指针偏转均如图乙所示,则通过电阻R1和R2的电流分别为( )
A.
1.2 A 0.22 A
B.
0.98 A 0.22 A
C.
0.96 A 0.24 A
D.
0.24 A 1.2 A
【单选题】Things might have been much worse if the mother on her right to keep the baby.
A.
had insisted
B.
has been insisting
C.
would insist
D.
insisted
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