股骨下1/3骨折后，远折端向后倾斜移位，主要是由于
A．股二头肌的牵拉
B．腓肠肌的牵拉
C．缝匠肌的牵拉
D．半腱肌的牵拉
E．半膜肌的牵拉
参考答案：B
The children ran away________all directions the moment they caught sight of their teacher coming near.[ ]
A. in
B. to
C. from
D. off
CO2气路内的干燥器作用是吸收CO2气体中的水分。
