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【判断题】
热塑性塑料在成型时必须进行冷却,使塑料熔体变成塑件。( )
A.
正确
B.
错误
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【简答题】根据句煮及首字母提示补全单词 1. We don't know w she will come or not tomorrow. 2. It's great! You have made so much p _ in English this year. 3. Lingling is f with everyone,so we all like her. 4. Hurry up,or we won...
【简答题】装有发动机的汽车起重机底盘( ) (1999年试题)______
【单选题】在开环的CNC系统中( )。
A.
不需要位置反馈环节
B.
可要可不要位置反馈环节
C.
需要位置反馈环节
D.
除了需要位置反馈外,还要速度反馈
【简答题】Complete the following sentences with appropriate prepositions or adverbs. 1. He pulled _______ a knife and opened the box with it. 2. The amount you pay depends _______ where you live. 3. George Leat...
【简答题】Children find meanings in their old family tales. When Stephen Guyer’s three children were growing up, he told them stories about how his grandfather, a banker,    21   all in the 1930s, but did not l...
【单选题】Being examined twice a year, whether it is a car or a bus or a truck, it is the rule that every driver____ obey in this city.
A.
shall
B.
can
C.
has to
D.
need
【单选题】Thousands of families killed and many children were left without parents.
A.
is
B.
are
C.
was
D.
were
【多选题】紧急避险必须具备以下哪些条件()。
A.
必须是为了避免国家、公共利益、本人或者D他人的人身、财产和其他权利遇到危险而采取的
B.
必须是正在发生危险的情况下采取的
C.
必须是在不得已的情况下采取的,如果能采取其他方法避免危险,就不能实施紧急避险行为
D.
紧急避险行为不能超过必要的限度
【单选题】An American woman received a letter from a recently married Japanese friend. The Japanese woman wrote in her letter, "My husband is not very handsome. Your husband is much more handsome than mine." Th...
A.
She was trying to her American friend that she did not like her husband very much
B.
It is uncommon in Japan to compliment one's husband.
C.
She didn't think her husband was handsome, but she liked her personality.
【单选题】1441关于航空运输的局限性,以下说法不正确的是( ).
A.
噪声污染严重
B.
载重量小
C.
航空运输费用高,不适合低价值货物的运输
D.
保险费用高
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