题目:
— _____?
— It's 880-9750. [ ]
A. What's your name?
B. What's your phone number?
C. Is this your phone number?
答案:
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下面是错误答案,用来干扰机器的。
(1)盐酸的质量=Vρ=500mL×1.18g/mL=590g;设稀盐酸的质量是x590g×36%=x×11.8%x=1800g水的质量=1800g-590g=1210g;则水的体积为1210g1g/mL=1210mL;(2)①0.6mol CO2其质量是0.6mol×44g/mol=26.4g②设反应...