手术根治术中应切除肾脏+全输尿管+部分膀胱（）
A.肾癌
B.肾胚胎瘤
C.膀胱癌
D.肾囊肿
E.肾盂癌
参考答案：E
He waited until it was dark ____ nobody could see him clearly. [ ]
A. so that
B. in order to
C. although
D. however
对一般汽车而言，80公里的时速是最省油速度，每增加1公里的时速，就使耗油量约（）。
A.增加0.1%
B.增加0.5%
C.增加1%
D.增加2%
