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【多选题】
当污水管网安全维护人员进入排水管道内部检查、维护作业时，应符合什么要求（）。A.
管径不得小于1m
B.
流速不得大于0.5m/s
C.
水深不得大于0.5m
D.
充满度不得大于40%
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【单选题】“Why are the school windows so dirty?’’ “Because ___ to have them cleaned.”
A.
the school is not affording
B.
it is not afforded
C.
it is too expensive
D.
they are very expensive
【单选题】Neither of her parents wanted her to her cousin.
A.
marry
B.
marry to
C.
marry with
D.
marry for
【简答题】“Why are the school windows so dirty?’’ “Because ___ to have them cleaned.”A. the school is not affording B. it is not afforded C. it is too expensive D. they are very expensive
【判断题】这些年来,在世界货物海运量中,散物年运输量约占世界年总海运运输量的14%左右,是仅次于石油运输量、居世界货物海运量第2位的货类。在散货运输量中,煤炭和矿石的运量又约占了90%。
A.
正确
B.
错误
【单选题】It was easy for her to learn French because _______ of her parents spoke the language.
A.
none
B.
neither
C.
both
D.
all
【单选题】“Why are the school windows so dirty?’’
A.
ecause ___ to have them cleaned.”
B.
the school is not affording
C.
it is not afforded
D.
it is too expensive
E.
they are very expensive
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