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【单选题】
What's the matter, Miss Lin? I am having trouble _____ out who has taken away my book on this desk. [     ]
A.
find
B.
to find
C.
finding
D.
found
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【单选题】下列选择中,关于Canvas类说法错误的是( )。
A.
Canvas代表画布 。
B.
Canvas可以绘制各种各样的图形,如矩形。
C.
Canvas和Paint作用一样。
D.
Canvas有一个方法drawRect(Rect r ,Paint paint),表示画出一个指定矩形。
【单选题】According to ILO Convention, hours of rest may be divided into no more than periods on board the ship.
A.
two
B.
three
C.
five
D.
four
【判断题】缓冲溶液的总浓度一定,缓冲比等于1时,缓冲容量最大。
A.
正确
B.
错误
【单选题】【单选】Hours of rest may be divided into no more than two periods, one of which shall be at least _____in length.
A.
five hours
B.
seven hours
C.
six hours
D.
four hours
【判断题】当缓冲溶液的总浓度一定时,缓冲比等于1,则缓冲容量最大。
A.
正确
B.
错误
【单选题】In maritime Labor convention, hours of rest may be divide into no more than periods,one of which shall be at least six hour in length, and the interval between consecutive period of rest shall not exc...
A.
12
B.
10
C.
18
D.
14
【单选题】Hours of rest may be divided into no more than two periods, one of which shall be at least _____ hours in length, and the interval between consecutive periods of rest shall not exceed _____ hours.
A.
4/12
B.
6/12
C.
4/14
D.
6/14
【单选题】According to Maritime Labour Convention 2006,hours of rest may be divides into no more than_____.
A.
one perod
B.
two periods
C.
three periods
D.
four periods
【单选题】In maritime labour convention, hours of rest may be divided into no more than periods, one of which shall be at least six hour in length, and the interval between consecutive periods of rest shall not...
A.
14
B.
10
C.
12
D.
18
【单选题】In maritime labour convention, hours of rest may be divided into no more than two periods, one of which shall be at least six hour in length, and the interval between consecutive periods of rest shall...
A.
14
B.
10
C.
12
D.
18
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