路联接方法一般有()
A.法兰连接
B.螺纹连接
C.焊缝连接
D.承插连接
参考答案:A, B, C, D
_____, Janet and her friend decided to stop and have a rest.[ ]
A. Tiring and hungry
B. Tiring and hungrily
C. Tired and hungry
D. Tired and hungrily
属于抗血小板药的是()
A.华法林
B.尿激酶
C.双香豆素
D.肝素
E.阿司匹林(乙酰水杨酸)