Before DNA fingerprinting is used suspects _____

Before using or operating any equipment, you should first _____ its manual thoroughly and understand its contents_____.

A diesel engines crankcase oil level is found to be too highYou should suspect that _____.

Literature，with its store of memories，is suspected by the state，__________the state is ser

It can be inferred that railroad refrigerator cars came into use ______.A．before 1860B．bef

Faces, like fingerprints, are【C1】______Did you ever wonder how it is possible for us to re

Vingo and his family _____ in Brunswick, just before Jacksonville.A.used to liveB.used