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【单选题】
发现法是小学数学的一种常见方法,倡导发现 法的是( )。A.
布鲁姆
B.
加涅
C.
D.
奥
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举一反三
【单选题】While going out for an expedition, we need some power banks to back us _____.
A.
through
B.
on
C.
in
D.
up
【单选题】Power banks with built-in lithium batteries ______.
A.
can be carried in the carry-on baggage only
B.
can be carried in the checked baggage only
C.
can be carried in neither carry-on baggage nor checked baggage
D.
can be carried in either carry-on baggage or checked baggage
【单选题】Power banks with built-in lithium batteries ______.
A.
can be carried in the carry-on baggage only
B.
can be carried in the checked baggage onl
C.
can be carried in neither carry-on baggage nor checked baggage
D.
can be carried in either carry-on baggage or checked baggage
【单选题】Portable chargers or power banks containing a lithium ion battery must be packed in ___________ bags.
A.
carry-on
B.
checked
C.
check
D.
portable
【判断题】When you go through the security check, you can take 3 power banks with you.
A.
正确
B.
错误
【判断题】Spare lithium batteries and power banks must not be packed in carry-on baggage.
A.
正确
B.
错误
【简答题】在Fe-Fe3C相图中，PSK线称为（ ）线也称为A1线。
【简答题】在Fe-Fe 3 C相图中，GS线也称为A cm 线。
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