()
A.cosx
B.-cosx
C.-sinx
D.sinx
参考答案:C
解析:
由三角恒等变换公式可得
Mary always ________ she is the only one that does any work..
A.stands out
B.figures out
C.makes out
D.looks out
患者,男,23岁,咳嗽少痰,咽干口燥,兼见恶寒发热,头身疼痛,无汗,舌苔薄白,脉浮,当以何证处理
A.风寒咳嗽
B.风热咳嗽
C.凉燥咳嗽
D.风燥咳嗽
E.肺阴虚证