问题
选择题
—Can you come to my birthday party?
—Yes, I'd love to, _____ I have to look after my mother in hospital. [ ]
A. but
B. and
C. so
D. or
答案
答案：A
搜题请搜索小程序“爱下问搜题”
—Can you come to my birthday party?
—Yes, I'd love to, _____ I have to look after my mother in hospital. [ ]
A. but
B. and
C. so
D. or
答案：A
2HI（气）。 已知H2和I2的起始浓度均为0.10mol·L-1时，达平衡时HI的浓度为0.16 mol·L-1,若H2和I2的起始浓度均为0.20 mol·L-1时,则平衡时H2的浓度（mol·L-1）是[ ]