有动车组停靠或通过的车站，应当对跨线候车室窗户或天桥进行封闭管理并有“禁止抛物”等相应的安全提示。
参考答案：对
(2013·成都七中考前模拟)We were stuck on the way to the scenic spot, otherwise we ________ lots of fun there.
A．had had
B．have had
C．could have had
D．could have
下列能形成始体的原核细胞型微生物是
A．支原体
B．衣原体
C．立克次体
D．螺旋体
E．放线菌
