已知等差数列{an}，an+2=2an+1-3n+1，则第5项a5等于（） (A)23 (B)20 (C)17 (D)14
查看答案
The mainDifference between a nurse—manager and a head nurse is that the former
A. is a member of the Medical Executive Committee of the hospital
B. has to arrange the work shifts of the unit's nurses
C. can makeDecisions concerning the medical treatment of a patient
D. has full responsibility in the administration of the unit’s nurses
What does the writer say is the important tlling to do to enjoy karaoke？
A. Enter the code number．
B. Choose many different types of music．
C. Listen to others singing so everyone has an audience．
D. Change your voice from a woman to a man or vice—versa．
A.so much more realthanB.so much realer thanC.somuch more actual thanD.so far more in fact
A. so much more realthan
B. so much realer than
C. somuch more actual than
D. so far more in fact than
（）
A. see
B. realize
C. dream
D. develop
微信支付 
支付宝支付