---He’s passed the exam. ---_____.
A.So am I
B.So have I
C.So I have
D.Also I have
答案:B
多单枝,较细小,弯曲似钩()
A.味连
B.雅连
C.云连
D.白芍
E.赤芍
杭钢蜂窝式电除尘器及变压器系统要求接地电阻小于多少?()
A.2Ω
B.4Ω
C.10Ω
D.1KΩ