该病的证候分型是:
A.肝阳头痛
B.气虚头痛
C.肾虚头痛
D.瘀血头痛
E.痰湿头痛
参考答案:A
—David, turn off the TV _____ no one is watching it.
—But it _____ off already! The music is from the radio.[ ]
A. so that; has been turned
B. when; has turned
C. if; has been turned
D. because; has turned
水的比热容为4.2×103焦/(千克•℃),无烟煤的热值是3×107焦/千克,2.1千克无烟煤完全燃烧,将可以放出______焦的热量,这些热量能使______千克40℃的水烧开(100℃)(不计热损失).