∵a2-4a+2=0,
∴a2-4=0a+2≠0,
∴a=2,
故选B.
根据句意及首字母提示填空。
1. Is there a bank in the n_______.
2. A: Where's the post office?
B: Go s_______, it's next to the supermarket.
3. Our classroom is in f_______of the library.
4. The car t_______ left.
5. They see a new hotel on the r_______.
某乡人大换届选举中,个别人用“小恩小惠”拉选票的行为( )
一手交钱,一手交票
①严重危害了社会主义民主政治建设,败坏了社会风气
②妨碍了选民正确行使民主权利
③违反了选举法的有关规定
④破坏了国家统一和民族团结
A.①②③
B.①②④
C.②③④
D.①③④