A . A broad-band light source
B . A narrow-band light source
C . A light detector
D . Not a light source
[单选题]His stomach felt hollow with fear.A . sincereB . respectfulC . terribleD . empty
[单选题]A lamp was [suspended]from the ceiling.A.heldB.hookedC.hiddenD.hung
[单选题]A lamp was [suspended]from the ceiling.A.heldB.hookedC.hiddenD.hung
[单选题]It was well known that Thomas Edison ____________ theelectric lamp.A.discov
[单选题]It was well known that Thomas Edison _____ the electric lamp.A.discoveredB.
[单选题]It was well known that Thomas Edison _____ the electric lamp.A.discoveredB.
[单选题]It was well known that Thomas Edison __________the electric lamp.A.discover
[单选题]It was well known that Thomas Edison()the electric lamp.众所周知,托马斯.爱迪生发明了电灯。A
[单选题]以下不属于分子生物学HLA分型法的是A.PCR-RFLPB.LAMP-PCRC.PCR-SSCPD.SBTE.PCR-SS0