肾小球内系膜细胞具有下列功能()
A.收缩功能
B.吞噬功能
C.产生血管活性物质
D.血管活性因子及生长因子
E.合成系膜基质和胶原
参考答案:A, B, C, D, E
The parents didn't tolerate their kids' rudeness at the party, nor ______ themselves to be disobeyed.
A.they allowed
B.did they allow
C.didn't they allow
D.they didn't allow
电气操作中下列行为不属于正确操作步骤的是()。
A.监护人手指设备名称编号高声唱票
B.操作人手指设备名称编号复诵
C.经监护人确认无误后执行
D.执行所有操作后,监护人在票面左边打“√”