A. used
B. uses
C. was used
D. was using
第1题:
A、a natural leader
B、other members like to follow
C、He/she should have the ability of promoting team spirit when times get tough
D、He/ She always possess a positive attitude、
第2题:
Ada: How's the young man?
Bill:______
A、He's twenty.
B、He's a doctor.
C、He's much better.
D、He's Dick.
第3题:
用于分离沙门菌的选择性培养基有
A、DHL、HE、WS、SS或BS
B、DHL、HE、WS、SS或TTB
C、DHL、HE、WS、SS或SC
D、DHL、HE、WS、SS或MM
E、DHL、HE、WS、SS或EMB
第4题:
YoucreatedtheORDERStableinyourdatabasebyusingthefollowingcode:
SQL>CREATETABLEORDERS(ORDER_DATETIMESTAMP(0)WITHTIMEZONE);
Then,youinserteddataintheORDERStableandsaveditbyissuingthefollowingstatements:SQL>INSERTINTOORDERSVALUES(’18-AUG-0010:26:44PMAmerica/New_York’);
SQL>INSERTINTOORDERSVALUES(’23-AUG-0212:46:34PMAmerica/New_York’);
SQL>COMMIT;
Next,youissuedthefollowingstatementtochangethetimezoneforthedatabase:
SQL>ALTERDATABASESETTIME_ZONE=’Europe/London’;
Whatwillbetheresultofexecutingtheabovestatement?()
第5题:
He’s watching TV? He’s ________ to be cleaning his room.
A) known B) supposed C) regarded D) considered
第6题:
单模光纤只能传输一个模式,即(),称为光纤的基模。
A.HE00模
B.HE11模
C.HE01模
D.HE10模