可作为转盘的变速机构和中间传动机构的是（）。
A.天车
B.大钩
C.水龙头
D.绞车
参考答案：D
______ reduce pollution，the government has made a policy to restrict the use of plastic bags in some areas．
A．In order that
B．So as to
C．So that
D．In order to
右侧中枢性舌下神经麻痹的表现有（）
A.右侧舌肌萎缩及震颤
B.左侧舌肌萎缩及震颤
C.伸舌偏向病灶对侧
D.伸舌偏向病灶同侧
E.伸舌不受影响
