问题
选择题
To the great ________ of the citizens, no one else was infected with H1N1 except the 12
confirmed cases. [ ]
A. relaxation
B. disappointment
C. relief
D. surprise
答案
答案：C
搜题请搜索小程序“爱下问搜题”
To the great ________ of the citizens, no one else was infected with H1N1 except the 12
confirmed cases. [ ]
A. relaxation
B. disappointment
C. relief
D. surprise
答案：C
2HI(g) △H=－9.48 kJ/mol 
2HI(g) △H=+26.48 kJ/mol