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)
Don’t forget to lock the door! ______ to lock the door!
Don’t forget to lock the door! ______ to lock the door!
以下单词解释错误的是() A: erect--箱子 B: lock--锁,上锁 C: separate--分开 D: pack--包装
以下单词解释错误的是() A: erect--箱子 B: lock--锁,上锁 C: separate--分开 D: pack--包装
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;
The lock _ shut.
The lock _ shut.
I heard him __the door A: locking B: to lock C: lock D: being locking
I heard him __the door A: locking B: to lock C: lock D: being locking
大写锁定键是( ) A: Caps lock B: ESC C: Num lock D: Shift
大写锁定键是( ) A: Caps lock B: ESC C: Num lock D: Shift
若要锁定器件不被移动,则可选取哪个选项?[1分] A: Lock Primitives。 B: Lock Strings。 C: Locked。 D: Lock All。
若要锁定器件不被移动,则可选取哪个选项?[1分] A: Lock Primitives。 B: Lock Strings。 C: Locked。 D: Lock All。