肉桂的功效是（）
A.温肺化饮
B.回阳救逆
C.补火助阳
D.疏肝下气
E.温中和胃
参考答案：C
Can you help _____ with _____ English? [ ]
A. he, his
B. his, his
C. him, his
D. him, him
南方电网新调规规定了事件等级，分为一级至（）级，共（）个类别。
A.四；3
B.五；21
C.四；21
D.五；3
