【C2】A．razeB．scrapeC．rubD．take

若两个电容C1＞C2串联，则总电容为（)。A.C1＋C2B.C1－C2C.C1×C2／（C1＋C2)D.（C1＋C2)／（C1×C2)

【C2】______A．fails downB．breaks outC．wakes upD．takes place

【C16】A．Taking toB．Taking forC．Taking offD．Taking on

【C5】A．take effectB．take placeC．take careD．take heart

【C2】A．take toB．take onC．take inD．take up

【C2】A．gets offB．starts offC．takes offD．puts off