1小时尿沉渣定量检查计数法所留全部尿液时间为 （）
A.1小时
B.2小时
C.3小时
D.4小时
E.5小时
参考答案：C
In 1776 the United States announced the Declaration of Independence to ______ from the British Empire and became an independent country.A. pull down B. break away C. get off D. drop off
交叉杆支撑座裂损属于（）故障。
