—Do you think we should accept that offer?

—Yes, we should, for we _________ such bad luck up till now, and time _________ out.

A．have had; is running

B．had; is running

C．have; has been run

D．have had; has been run

关于平衡测试不正确的是（）。

A.测试时环境保持安静

B.下肢骨折未愈合者也可进行平衡测试

C.严重心血管疾病患者不宜进行平衡测试

D.不能站立者可以坐位下测试

E.60s不能直立者可进行30s测试