某商业中心的营业面积为10000㎡，需配建多少小型汽车停车位()
A．15
B．20
C．25
D．30
参考答案：D
They had to wait _____ the dog _____ out of the room. [ ]
A. for; come
B. for; to come
C. at; to come
D. at; coming
语义与意义、词义有什么区别？
