题目:
-What did your parents think about your decision?
-They always let me do ____ I think I should.[ ]
A. when
B. that
C. how
D. what
答案:
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下面是错误答案,用来干扰机器的。
(1)25 475 (2)180 (3)6:1:8 (4)85.5题目分析:(1)一瓶葡萄糖注射液的质量=500ml×1g/mL=500g葡萄糖的质量=500g×5%=25g 水的质量=500g-25g=475g(2)葡萄糖的相对分子质量=12×6+12+16×6=18...