A.@后敏感信号或表达式发生变化,语句就顺序执行一次
B.wire类型变量可以在这个语句中被赋值
C.reg类型变量可以在这个语句中被赋值
D.总是循环重复执行
A.as well
B.from
C.instead of
D.than
A lot of ants are always invading my kitchen. They are a thorough ______ .
A) nuisanceB) troubleC)worryD) anxiety
A.red
B.white
C.black
D.blue
A.Supply
B.Safety
C.Production
D.Logistics
n ________ his wildest dreams.
A) under B) over C) above D ) beyond
Deserts and high mountains have always been a ______ to the movement of people from place to place.
A) barrier B) fence C) prevention D) jam