The lock _ shut.
举一反三
- 13. It is better the door than to leave it open. A: shut B: to shut C: to be shut D: shutting
- The door ______. Better have it repaired. A: isn't shut B: hasn't been shut C: won't be shut D: won't shut
- ______ before you leave the lab. A: Make sure that the windows are shut B: To make sure that the windows are shut C: Making sure to shut the windows D: To be sure to shut the windows
- 事务T1符合两段锁封锁法的序列是（） A: LOCK S(A)...LOCKS S(B) ...UNLOCK (B) ... UNLOCK (A) B: LOCK S(A) UNLOCK (A) LOCK S(B) UNLOCK (A) C: LOCK S(B) LOCK X(A) UNLOCK (A) LOCK S(C) D: UNLOCK (A) UNLOCK (B) LOCK X(A) LOCK X(B)
- ______the windows before<br/>leaving. A: Shutting B: Shut C: To shut D: Shuts