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【判断题】
大修后发动机功率不得低于额定功率的 75% 。A.
正确
B.
错误
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【单选题】Choose the phrase that is closest in meaning to the underlined part. Since each individual frame of a film is equivalent to a discrete sampling operation, if the rate of spokes passing a given angle i...
A.
if the movie frame rate is too high with respect to the rate of spokes
B.
if the time interval between movie frames is too short with respect to the rate of spokes
C.
if the spokes move across a large angle to give the rate of movie frames
D.
if the rate of the movie frame is too low with respect to the rate of spokes
【单选题】Under an option contract, the right to buy an asset at a specified price for a specific time interval is______.
A.
short option
B.
long option
C.
call option
D.
put option
【单选题】对于一定温度下的金属丝杨氏模量,说法正确的是( )。
A.
只与材料的物理性质有关与材料的大小和形状无关
B.
与材料的大小有关而与形状无关
C.
与材料的形状有关而与大小无关
D.
杨氏模量标志着金属材料抵抗弹性变形的能力
【简答题】短时记忆的容量有一定的限度，其平均数量为（ ）个组块。
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