下列费用中，属于土地开发费的有（）。
A.耕地开垦费
B.拆迁费
C.基础设施配套费
D.公共事业配套费
E.小区开发配套费
参考答案：C, D, E
气动机构全部空气管道系统应以额定气压进行漏气量的检查，在24h内压降不得超过（）。
A、10％；
B、15％；
C、5％；
D、20％。
When I talked with my grandma on the phone, she sounded weak, but by the time we () up, her voice had been full of life.
A. were hanging
B. had hung
C. hung
D. would hang
