白茅根具有的功效是()
A.解毒敛疮
B.消肿生肌
C.清热利尿
D.祛痰止咳
E.活血祛瘀
参考答案:C
解析:白茅根的功效:凉血止血、清热利尿、清肺胃热。故选择C。
已知坐标平面内点M(a,b)在第一象限,那么点N(b,-a)在( )
A.第一象限
B.第二象限
C.第三象限
D.第四象限
It was on July 1, 2006 ___ Qinghai-Tibet railway began operation, ____ is a symbolic project in China’s West Development Strategy.
A.when; that
B.that; when
C.which; when
D.that; which