问题
选择题
The story ______ he told me is very exciting.[ ]
A. when
B. which
C. what
D. who
答案
B
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The story ______ he told me is very exciting.[ ]
A. when
B. which
C. what
D. who
B
bB(g)+cC(g)，在温度不变的条件下，再充入一定量的A物质。下列说法正确的是[ ]