问题
选择题
—Tom, what's your aim in life?
—My aim is ______ a computer engineer. [ ]
A. is
B. to
C. to be
D. /
答案
答案：C
搜题请搜索小程序“爱下问搜题”
—Tom, what's your aim in life?
—My aim is ______ a computer engineer. [ ]
A. is
B. to
C. to be
D. /
答案：C
2H2(g)+S2(g) 
H＞0，不改变其他条件的情况下合理的说法是