—How are you getting along with your Eng
题型：选择题
问题：
—How are you getting along with your English?
—_____, I'm not good at English. But I will work harder on it. [ ]
A. To start with
B. To be sure
C. To my surprise
D. To be honest
题型：选择题
M(NO3)2热分解化学方程式为：2 M(NO3)2
2MO+4NO2↑+O2↑。加热29.6g M(NO3)2使其完全分解，在标准状况下收集2.24L的气体，那么M的摩尔质量是[ ]
A. 24 g/mol
B. 24
C. 64 g/mol
D. 64
