紫河车不具备的功效是
A．补精
B．温肾
C．安胎
D．益气
E．养血
参考答案：C
He says he is not tired and _____have a rest. [ ]
A. needn ' t
B. doesn ' t need
C. needn ' t to
D. don' t need to
32. Not until he told me the news __________ the truth.
A．didn’t I know
B．did I know
C．I didn’t know
D．I knew
