保温结构由()组成。
A、保温层、保护层、防水层
B、保护层、防腐层、防水层
C、保温层、保护层、防腐层
D、保温层、防腐层
参考答案:A
This is the case _____ he's had all his money stolen. [ ]
A. when
B. where
C. that
D. on which
1850 TSS-5C可通过()微波卡和室外微波设备9500MPR一起提供综合微波上联
A、R2O2E;
B、O16E1;
C、O8FEK。