[单选题]铸造钛的熔点为A．500℃B．850～1000℃C．1000～1200℃D．1200～15000℃E．16000℃以上
[单选题]设a="a",b="b",c="c",d="d",执行语句x=IIf((aD),"A","B")后,x的值为______。A. "a"B.bC.B设a="a",b="b",c="c",d="d",执行语句x=IIf((a＜B)Or(c＞D)，"A","B")后，x的值为______。A． "a"B．bC．BD．A
[单选题]设a="a",b="b",c="c",d="d",执行语句x=IIF((aD),"A","B") 后,x的值为A.aB.bC.BD.A设a="a"，b="b"，c="c"，d="d"，执行语句x=IIF((a＜B)Or(c＞D)，"A"，"B") 后，x的值为A．aB．bC．BD．A
[单选题]设a="a",b="b",c="c",d="d",执行语句x=IIF((ad),"A","B")后, x的值为A.aB.bC.BD.A设a="a"，b="b"，c="c"，d="d"，执行语句x=IIF((a＜b)Or(c＞d)，"A"，"B")后， x的值为A．aB．bC．BD．A
[单选题]设a="a",b="b",c="c",d="d",执行语句x=Iif((ad),"A","B")后,x的值为______。(2005年4月)A设a="a"，b="b"，c="c"，d="d"，执行语句x=Iif((a＜b)Or(c＞d)，"A"，"B")后，x的值为______。(2005年4月)A．aB．bC．BD．A
[单选题]设a="a",b="b",c="c",d="d",执行语句x=IIf((aD),"A","B")后,x的值为A.aB.bC.BD.A设a="a"，b="b"，c="c"，d="d"，执行语句x=IIf((a＜B)Or(c＞D)，"A"，"B")后，x的值为A．aB．bC．BD．A
[单选题]D．设a="a",b="b",c="c",d="d",执行语句x=IIF((a<b) Or (c>d),"A","B")后,x的值为A．aB．bC．BD．A
[单选题]指令“Circle(1500，1200)，1000，，，，0．5”将会绘制出的图形为（ ）。A． 圆B． 正方形C． 椭圆D． 圆弧
[单选题]代号为"B"的容器为（）。A . 分离压力容器B . 球形储存压力容器C . 换热压力容器D . 反映压力容器
[单选题]B．"No man is an island． "is a well-known line from John Donne's Devotion，written more than three hundred years ago． Even now people still agree with him． No one can live a complete-Iy isolated life． Without other people，life becomes empty and sad．