抽出液塔回流温度高，会导致抽出液塔顶产品粗PX中C9A含量增加甚至超标。（）
参考答案：对
The Jiangsu TV station is very popular with many people in China, as it deals with ________ subjects such as music, entertainment and fashion.
A．precise
B．diverse
C．casual
D．regular
不宜做运动实验的是（）
A.观察冠心病的药物治疗效果
B.了解冠心病病人的心脏负荷能力
C.可疑冠心病
D.不典型胸痛
E.急性心肌梗死或心肌梗死合并室壁瘤
