Which kind of lock permits “dirty reads”?? Shared lock.|Write intent lock.|No lock.|Read lock.
Which kind of lock permits “dirty reads”?? Shared lock.|Write intent lock.|No lock.|Read lock.
This key doesn’t _________ into the lock.
This key doesn’t _________ into the lock.
I saw him ______ the key ______the lock.（插入）
I saw him ______ the key ______the lock.（插入）
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)
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)
Leave the key _____ the lock. A: up B: in C: on D: down
Leave the key _____ the lock. A: up B: in C: on D: down
Don’t forget to lock the door! ______ to lock the door!
Don’t forget to lock the door! ______ to lock the door!
1.____ (Para 2) A: but a picture of a child’s bicycle with the now-usual padlock attached to it. B: We are fearful, and so wedevise ways to lock the fear out. C: In rural areas as well as in cities, doors do not stay unlocked, even for part of an evening. D: Who is going to make the psychic payment for the transformation of America from the Land of the Free to the Land of the Lock.
1.____ (Para 2) A: but a picture of a child’s bicycle with the now-usual padlock attached to it. B: We are fearful, and so wedevise ways to lock the fear out. C: In rural areas as well as in cities, doors do not stay unlocked, even for part of an evening. D: Who is going to make the psychic payment for the transformation of America from the Land of the Free to the Land of the Lock.
Scan the text and find the sentences containing the word "lock or the word root "lock".
Scan the text and find the sentences containing the word "lock or the word root "lock".
We'll _____ the gates. We'll _____ the staff.（ ） A: reduce; lock B: lock; reduce
We'll _____ the gates. We'll _____ the staff.（ ） A: reduce; lock B: lock; reduce
ADC 0809采样结束后需要通过LOCK向锁存器LATCH发出锁存信号，以便将输出口的D[7：0]8位数据锁存起来，下列程序当中能够实现数据锁存功能的是（） A: always@（posedge LOCK） if (LOCK) REGL<=D; B: always@（posedge LOCK） if (!LOCK) REGL<=D; C: always@（posedge RST） if (!LOCK) REGL<=D; D: always@（posedge RST or posedge LOCK ） if (!LOCK) REGL<=D;
ADC 0809采样结束后需要通过LOCK向锁存器LATCH发出锁存信号，以便将输出口的D[7：0]8位数据锁存起来，下列程序当中能够实现数据锁存功能的是（） A: always@（posedge LOCK） if (LOCK) REGL<=D; B: always@（posedge LOCK） if (!LOCK) REGL<=D; C: always@（posedge RST） if (!LOCK) REGL<=D; D: always@（posedge RST or posedge LOCK ） if (!LOCK) REGL<=D;