血栓闭塞性脉管炎Ⅱ期的典型表现是
A. 静息痛
B. 间歇性跛行
C. 足背动脉搏动减弱
D. 足趾溃疡坏死
A young worker carried a child out of the________ house.
A. burn
B. burned
C. burning
D. burns
Looking out of the window, I________ a lot of people had gathered in the street.
A. found
B. find
C. founded
D. finding
I ________ the girl ________ to the house.
A. see… come
B. see…comes
C. saw…comes
D. saw… coming