Vicki became suspicious of David Bieber because 。

A． the police called her

B． he looked very strange

C． he came to the hotel with little luggage

D． he came to the hotel the day before New Year’s Eve

[单选题]D．avid Bieber was most probably handcuffed in 。A． the passage B. the man’s roomC． Vicki’s bedroom D. the top floor room

[单选题]Vicki’s heart missed a beat because 。A． the phone went againB． she would be famousC． the policemen had already arrivedD． she saw 20 policemen in the car park

[单选题]D．avid Copperfield is a novel by ______.A．Charles DickensB．William M. ThackerayC．George EliotD．Mrs. Gaskell

[单选题]D．avid threatened ______ his neighbor to the police if the damages were not paid.A． to be reported B. reporting C. to report D. having reported

[单选题]The professor asked a question，and David______a good answer.A．put up withB．stood up forC．came up withD．looked down upon

[单选题]David手术是指（）A . 升主动脉人工血管替换和主动脉瓣置换术B . 升主动脉、主动脉窦置换保留主动脉瓣C . 升主动脉、主动脉瓣置换和冠状动脉开口移植术D . 主动脉瓣置换、升主动脉置换，冠状动脉开口与细人工血管吻合后再吻合至升主动脉上E . 自体肺动脉瓣移植至主动脉瓣位置，同种主动脉瓣置换至肺动脉瓣位置

[单选题]David手术是指A.升主动脉人工血管替换和主动脉瓣置换术B.升主动脉、主动脉窦置换保留主动脉瓣C.升主动脉、主动脉瓣置换和冠状动脉开口移植术D.主动

[单选题]Professor David Morton of the department is involved ______animal research and is concerned ______reducing animal suffering as much as possible.A． to…withB． in…inC． with…inD． in…with

[单选题]Mark Twain became famous inA． AsiaB． the United StatesC． EuropeD． both B and C

[单选题]What is David probably going to do？A．To meet Linda. B.To call a doctor. C.To get some medicine.