原发性高血压发病可能相关因素，下列哪项不妥（）
A.遗传因素
B.年龄增大
C.脑力活动过度紧张
D.自身免疫缺陷
E.食盐较多及体重超重
参考答案：D
Although the average reader spends more than 4,000 pounds on books in their lifetime, 55 percent
say they buy them for decoration and have no ________ of reading them. [ ]
A. advantage
B. attempt
C. evidence
D. intention
下图标语内容所反映的历史事件是
A．九一八事变
B．五四运动
C．七七事变
D．西安事变
