The problem is_______ he has enough time. A.if B.whether C./ D.that

He doubted ______ it was true. A: A.if B: B.that C: C.as though D: D.as if

下列语句中,属于多分支语句的是()。A.if语句B.for语句C.switch语句下列语句中，属于多分支语句的是（）。A.if语句B.for语句C.switch语句D.dowhile语句

在Excel工作表中,正确表示if函数的表达式是[ ]。 A: A.IF(“平均成绩”>60,“及格”,“不及格”) B: B.IF(e2>60,“及格”,“不及格”) C: C.IF(e2>60,“不及格”,“及格”) D: D.IF(e2>60,及格,不及格)

设有定义：inta=1，b=2，C=3；以下语句中执行效果与其他三个不同的是()。 A.if(a>B.C=a，a=b，b=C； B.if(a>B.{C=a，a=b，b=C；} C.if(a>B.C=a；a=b；b=c； D.if(a>B.{C=a；a=b；b=c；}

以下语法正确的if语句是_____________。 A: A.if(x＞0)printf(“%f”,x)elseprintf(“%f”,-x); B: B.if(x＞0)｛x=x+y;printf(“%f”,x);｝elseprintf(“%f”,-x); C: C.if(x＞0)｛x=x+y;printf(“%f”,x);｝;elseprintf(“%f”,-x) D: D.if(x＞0)｛x=x+y;printf(“%f”,x)｝elseprintf(“%f”,-x);

对于id为“name”的文本框,判断其输入不为空的正确JavaScript代码是()。A.if(document.getElementsByName("name").value.length==0)alert("输入不能为空");B.if(document.getElementByName("name").value=="")alert("输入不能为空");C.if(document.getElementById("name").value=="")alert("输入不能为空");D.if(document.getElementById("name").value.length==0)alert("输入不能为空");

阅读理解Passage OneWe often hear people say that travel broadens the mind: If you stay in your own country your whole life, your ideas remain narrow; if you travel abroad you see new customs, meet new people, eat new food, do new things, and come back home more broad-minded.But does this always happen? An acquaintance of mine who lives in England had never been abroad; until last summer he decided to go to France for a trip. When he returned, I asked him how he liked it. “Terrible,” was his answer. “I couldn’t get a nice cup of tea anywhere. Thank goodness I’m back.” I asked him whether he had any good food while he was there. “Oh, the dinners were all right,” he said. “I found a little place where they made quite good fish and chips. Not as good as ours, mind you, but they were acceptable. But the breakfasts were terrible: no bacon or kippers. I had fried eggs and chips, but it was quite an effort getting them to make them. They expected me to eat rolls. And when I asked for marmalade, they brought strawberry jam. And do you know, they insisted that it was marmalade? The trouble is they don’t know English.”I thought it useless to explain that we borrowed the word “marmalade” from French, and that it means, in that language, any kind of jam. So I said, “But didn’t you eat any of the famous French food?” “What? Me?” he said. “Of course not! Give me good old English food every time! None of those fancy bits for me!” Clearly, traveling had not broadened his mind. He had gone to France determined to live there exactly as if he were in England and had judged it entirely from his own English viewpoints. 1.People who say travel broadens the mind think that ____________.______ A.if you stay in your own country your whole life, your ideas become broaderB.if you stay in your own country your whole life, your ideas remain narrowC.if you stay in other countries your whole life, you can make fortuneD.if you stay in other countries your whole life, you will lose everything2.The writer’s acquaintance stay in _____ for most of his time.______ A.England B.SwitzerlandC.Ethiopia D.Poland 3.How does writer’s acquaintance think of his travelling abroad?______ A.Excellent.B.Terrible.C.Marvelous.D.Pleasant.4.Which of the following is true according to the passage above?______ A.The writer’s acquaintance is broad-minded.B.The writer’s acquaintance often goes abroad.C.The writer’s acquaintance lost his wallet in Paris.D.The writer’s acquaintance judge things in a foreign country from his own English viewpoints.5.The word “marmalade” means a kind of _________.______ A.jam B.juiceC.teaD.ham