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【单选题】
听力原文：Why can't the man ask John to call him back? (15)A.
Because he hasn't a phone.
B.
Because he's leaving the city right now.
C.
Because he's calling from a friend's.
D.
Because his wife is terribly sick.
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反馈参考答案：
举一反三
【简答题】B-ISDN 为 综合业务数字网, N-ISDN 为 综合业务数字网。
【单选题】在STEP7的S/R指令中,对于S指令,以下说法正确的是?
A.
S指令在SR触发器中优先
B.
S指令在RS触发器中优先
C.
所有形式的S指令都优先
D.
控制同意对象的R线圈比S线圈优先
【多选题】关于跳转指令“JMP”，以下说法中正确的是（ ）。
A.
“ JMP ”指令可以是无条件执行的
B.
“ JMP ”指令必须有跳转标记（ LABEL ）
C.
“ JMP ”指令可以是有条件执行的
D.
“ JMP ”指令条件满足时，则“ JMP ”与“ LABEL ”之间的程序也是执行的
【单选题】The tree ______ by your grandma grows very well.
A.
planting
B.
is planted
C.
planted
D.
plants
【单选题】以下关于指令寻址的描述中正确的是（ ）。
A.
每条指令都必须显式包含下条指令的地址码
B.
每条指令都隐含下条指令的地址码
C.
包含了下条指令地址码的指令，下条指令一定会转移到该地址上去
D.
顺序寻址方式下，每执行一条指令，PC的绝对值不一定加1
【单选题】One day, Gina is told that she cannot visit her Grandma Lilly because______.
A.
Grandma is busy preparing for cooking more cookies
B.
Gina cannot make Grandma feel better
C.
Gina needs more sleep and rest
D.
Grandma is not very well and is in hospital
【简答题】The court party expressed their abhorrence of those who attempted to interfere with the royal prerogative, began to be known as .
【简答题】ISDN为用户提供了两类速率接口，一类为______，另一类为主速率接口。
相关题目：
【单选题】The tree ______ by your grandma grows very well.
A.
planting
B.
is planted
C.
planted
D.
plants
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