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【多选题】
下列运动中满足机械能守恒的是( )
A.
手榴弹从手中抛出后的运动(不计空气阻力)
B.
子弹射穿木块
C.
细绳一端固定,另一端拴着一个小球,使小球在光滑水平面上做匀速圆周运动
D.
吊车将货物匀速吊起
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举一反三
【判断题】If the meaning of a word is clear to you, you can assume that it is also clear to your audience.
A.
正确
B.
错误
【判断题】You cannot assume that what is clear to you is clear to your audience.
A.
正确
B.
错误
【多选题】一般谦称自己的父亲为( )
A.
家祖
B.
老夫
C.
家严
D.
家父
【单选题】—What’s your favorite ________? —English.
A.
book      
B.
sport   
C.
subject
【单选题】中国古代一般谦称自己的父亲为
A.
家长
B.
家父
C.
家严
D.
家慈
【判断题】在同期、同利率的情况下,预付年金终值系数同普通年金终值系数相比,是“期数加1 、系数减1”。( )
A.
正确
B.
错误
【判断题】在同期、同利率的情况下,预付年金终值系数同普通年金终值系数相比,是 “ 期数 加 1 、系数减 1” 的关系。
A.
正确
B.
错误
【单选题】—Have you read this book? —Yes, it's my favorite book. I it twice. [     ]
A.
is reading
B.
have read
C.
will read
【单选题】Great Expectations ______ my favorite book, which ______ by Charles Dickens, and ______ as classic literature nowadays.
A.
is; was written; is seen
B.
are; are written; are seen
C.
is; had been written; is seen
D.
are; were written; is being seen
【单选题】一般谦称自己的父亲为( )。
A.
家祖
B.
老夫
C.
家严
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