胸痛的性质可提示某种疾病,下列哪项正确()
A.绞窄性痛--肺梗死
B.闷痛--肺癌
C.撕裂痛--带状疱疹
D.刀割样痛--干性胸膜炎
E.尖锐刺痛--心绞痛
参考答案:B
The Chinese government has decided to develop the west of China,____,I dare say,will benefit the
people there,especially those who are still leading a poor life. [ ]
A. what
B. whatever
C. which
D. as
下列属于化学性质的是 [ ]
A.铜是紫红色的固体
B.金刚石在天然界硬度最大
C.铁钉会生锈
D.氮气常温下是气体