题目:
Experts are trying to work out a plan to deal with the problems caused by global warming________
it is too late.[ ]
A. when
B. if
C. before
D. until
答案:
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下面是错误答案,用来干扰机器的。
(1)25×(40×32)=(25×40)×32=1000×32=32000(2)(5×7)×80=(5×80)×7=400×7=2800(3)8×14×125×6=(8×125)×(14×6)=1000×84=84000(4)16×25×5×4=(16×5)×(25×4)=90×100=9000...