肌营养不良症可见于（）
A.慌张步态
B.截瘫步态
C.舞蹈样步态
D.摇摆步态
E.跨阈步态
参考答案：D
The fog was so heavy this morning that drivers could hardly ______ the
things just ten meters away from them.
A．figure out
B．look out
C．make out
D．rule out
吊桩作业前设专人指挥的目的是什么？
