【简答题】A.It's useless. B.It's unnecessary. C.It's doubtful. D.It's helpful.
【简答题】A.It's cheaper. B.It's safer. C.It's quicker. D.It's readily available.
【简答题】A.It's right. B.It's awful. C.It's wrong. D.It's a fact.
【简答题】A.It's beautiful. B.It's too old. C.It's comfortable. D.It's luxurious.
【简答题】A.It's incredible. B.It's awesome. C.It's irrational. D.It's ridiculous.
【多选题】妊娠期间下列哪些现象是正确的:
A.
妊娠晚期因增大的子宫压迫及腹压增加,导致痔静脉曲张形成痔疮
D.
妊娠后期孕妇出现踝部及小腿下半部轻度水肿,经休息后消失,属正常现象
【单选题】在 C# 中,关于 Array 和 ArrayList 的维数,以下说法正确的是(选一项)
A.
Array可以有多维,而ArrayList只能是一维
B.
Array 只能是一维,而 ArrayList 可以有多维
C.
Array 和 ArrayList 都只能是一维
D.
Array 和 ArrayList 都可以是多维