盗窃属于（）。
A.自然风险
B.社会风险
C.经济风险
D.政治风险
参考答案：B
Some young people these days just ____ go out of their homes to contact the real world. [ ]
A. mustn't
B. won't
C. mightn't
D. shouldn't
腺热细胞按其形态特征分为几种类型？
