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【单选题】
Additionally, make sure that your password is long enough to()easily being hacked.A.
prevent your account from
B.
provide your account with
C.
do away with
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反馈参考答案：
举一反三
【单选题】平衡训练的顺序
A.
卧位平衡—坐位平衡—跪位平衡—立位平衡
B.
.坐位平衡—爬行位平衡—双膝跪位平衡—立位平衡
C.
卧位平衡—爬行位平衡—坐位平衡—立位平衡
D.
爬行位平衡—坐位平衡—双膝跪位平衡—立位平衡
【简答题】用橡胶浸渍的聚脂长丝纱线 ____________________
【单选题】The lowest temperature required to cause self-sustained combustion of a substance independent of any outside source of ignition is called ______．
A.
Explosive range
B.
Flash point
C.
Ignition temperature
D.
Combustion temperature
【单选题】The lowest temperature required to cause self-sustained combustion of a substance independent of any outside source of ignition is called （）.
A.
explosive range
B.
flash point
C.
ignition temperature
D.
combustion temperature
【单选题】How many independent high-energy ignition systems are installed in the aero-engine?
A.
1
B.
2
C.
3
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