科学发展观的核心是（）
A.发展
B.全面协调可持续
C.以人为本
D.统筹兼顾
参考答案：C
You don’t need__________ her. I_________ her for several times.
A describe, had met B describe, meet C to describe, have met D describe, met
C80B型系列敞车端墙内凹、外胀大于（）调修。
A.10mm
B.20mm
C.30mm
D.40mm
