( )月度、季度、年度的比较,通常被用来作为反映通货膨胀或通货紧缩的程度。
A.国内生产总值增长率
B.居民消费价格指数
C.进出口总额增长率
D.居民人均纯收入增长率
参考答案:B
________my dear teacher couldn’t understand was ________ fewer and fewer middle school students showed interest in her lessons.
A.What; why
B.That; what
C.What; because
D.Why; that
为防止在陡长的坡道上发生冲突或颠覆,应根据线路情况,计算确定在区域或站内设置()。
A.安全线
B.避难线
C.牵出线
D.机车走行线