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举一反三
【单选题】下列叙述不属于铁的物理性质的是(  )
A.
能被磁铁吸引,在电流的作用下能产生磁性
B.
铁在潮湿的空气中易变红
C.
铁能抽成细丝
D.
铁质地较软,能传热、导电
【简答题】“Welcome to Dialogue, President Carter. I was told that your birthday is on October 1st, which also happens to be our National day.”采取了()礼貌策略。
【单选题】Our National Day is on _______ first day in _______ October. A. a; the B. the; a C. the; 不填 D. a; 不填
A.
a; the
B.
the; a
C.
the; 不填
D.
a; 不填
【单选题】Our National Day falls ___ October 1 and thousands of cars pour into freeways ___ the early morning of the holiday.
A.
on; in
B.
in; on
C.
on; on
D.
in; in.
【单选题】下列不属于铁的物理性质的是
A.
延展性
B.
导电
C.
导热
D.
常温下呈液态
【单选题】下列描述不属于铁的物理性质的是 [     ]
A.
具有银白色金属光泽
B.
具有良好的导电性、导热性
C.
具有良好的延展性
D.
在潮湿的空气中容易生锈
【判断题】2阳离子交换树脂的性能较阴离子交换树脂强。
A.
正确
B.
错误
【简答题】healthy energy weight amounts spend special independent absorbed started born 9.Our________________day is on October 1st. It is our National Day.
【单选题】下列性质中不属于纯铁的物理性质的是( )
A.
银白色
B.
质硬
C.
易生锈
D.
能导电
【简答题】用恰当的单词填空,完成对话。每空一词。 A: Our National Day is coming. I'm looking forward to it. B: Me, too. As we know, it's the 1.________ birthday of the PRC. A: What are you going to do celebrate it? B: A great mili...
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