选择题：People _7_ everywhere to find ways to save heating

题目内容：

People _7_ everywhere to find ways to save heating oil and electricity. A looked
B look
C are looking
D have been looking

参考答案：

Americans believe so much in moving ahead that the

Americans believe so much in moving ahead that they are _1_ researching, experim

Mr. Yong is too ______ to go on walking.A oldB tallC tiredD strong

某商场采用毛利率法计算期末存货成本。本月月初体育用品结存150 000元，本月购入400 000元；实现销售收入270 000元，另发生销售退回和折让20 00

巷道施工队伍的基本管理制度包括A 工种岗位责任制B 技术交底制C 施工原始资料积累制D 工作面交接班制E 考勤制