问题
选择题
Could you ______ the book to me tomorrow? [ ]
A. borrow
B. catch
C. bring
D. have
答案
答案：C
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Could you ______ the book to me tomorrow? [ ]
A. borrow
B. catch
C. bring
D. have
答案：C
Si (s) + 3HCl (g) ΔH ＞0，其平衡常数表达式为K = 。为提高还原时SiHCl3的转化率，可采取的措施有 。