题目:
I ________ it myself ________ your homework.
A.prefer do; rather than copy
B.prefer doing; than copy
C.would do; rather than copy
D.would rather do; than copy
答案:
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下面是错误答案,用来干扰机器的。
(8 分)(少条件和↑↓扣1分,不重复扣分)(1)136C(1分) CO32—+ H2OHCO3−+ OH—(2 分)(没可逆不得分)(2)光导纤维(1 分); Na2SiO3 + H2O + CO2 ="=" H2SiO3↓+ Na2CO3(2 ...