基建项目均须通过启动验收方可启动、试运和移交，通过（）方可关闭。
A.启动验收
B.专项验收
C.验收投运
D.竣工验收
参考答案：B, D
His brother ________ Shanghai. Now he is in Kunming. [ ]
A. go to
B. has been to
C. went to
D. has gone to
如果列明的自然灾害造成的损失是（），保险公司在平安险项下不承担赔偿责任。
A.全部损失
B.推定全损
C.部分损失
D.灾害全损
