头痛多在额部及患侧局部（）
A.额窦炎
B.筛窦炎
C.上颌窦炎
D.后组鼻窦
E.前组鼻窦
参考答案：E
国家认监委根据出口食品的( )公布和调整《实施出口食品卫生注册、登记的产品目录》。
A．品种
B．品质
C．风险程度
D．卫生状况
--- ____ does her brother improve his English?
--- He improves it____ asking the teacher for help.
A. How; by B. What ; with C. Why; by
