东方式直立型插花第一主枝的角度为（）度左右。
A.30
B.45
C.60
D.90
参考答案：D
If you _____faults but you still want the bicycle, ask the shop assistant to reduce the price.
A．come across
B．care about
C．look into
D．look up to
我国政治、文化中心是（）
A、北京
B、天津
C、上海
D、广州
