痛经患者应注意（）。
A.少吃寒凉生冷
B.经期不宜游泳、涉水
C.起居生活要有常度
D.切勿预先畏惧疼痛发生
E.以上均是
参考答案：E
He doesn’t like to be interrupted if he_______ .
A．speaks
B．will speak
C．is speaking
D．spoke
The farm grows various kinds of crops, _______ wheat, corn, cotton and rice. [ ]
A. for example
B. as
C. so that
D. such as
