低热、盗汗、咳鲜血痰()
A.肺结核
B.肺癌
C.支气管扩张
D.急性左心衰竭
E.支原体肺炎
参考答案:A
Let's _____the books. [ ]
A. to go and find
B. to go and to find
C. go and find
D. go and go find
朱砂经过水飞后哪个成分的含量降低()
A.硫化汞
B.游离汞
C.可溶性砷盐
D.可溶性汞盐
E.游离砷