破伤风患者最早出现的临床表现是
A.牙关紧闭
B.面部苦笑
C.角弓反张
D.阵发性抽搐
E.大汗淋漓
参考答案:A
( ) 1. What is your birthday?
A B C
( )2. He birthday is October tenth.
( )3. Tina's sister is five year old.
( )4. —How are you?
—I'm nine years old.
( )5. My brother is fifth years old.
_________
计算机执行程序时,在一个指令周期的过程中,为了能够从内存中读指令操作码,首先是将 (9) 的内容送到地址总线上。
A.程序计数器PC
B.指令寄存器IR
C.状态寄存器SR
D.通用寄存器GR