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【简答题】
钢尺量距时,如定线不准,则所量结果 总是 偏 。
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反馈参考答案：
举一反三
【简答题】变量(variable)指的是可以在数量上或质量上的 事物的属性,变量的两个基本特点是 和 。
【单选题】下列语句序列执行后,x 的值为? int a=3, b=4, x=5; if( ++a
A.
5
B.
3
C.
4
D.
6
【简答题】Ifyou had wanted to buy a record, what ?A. wouldyou buyB. hadyou boughtC. wouldyou have boughtD. ouldyou be buying
【单选题】She ________ a model before she _______ a superstar.
A.
have been, became
B.
had been, become
C.
had been, became
D.
has been, become
【单选题】Ifyou had been willing to pay $2.19for the gallon of milk purchased at thesupermarket but were required to payonly $1.89, you have gained
A.
a refund of $.30 from the clerk
B.
a consumer surplus amounting to$.30.
C.
excess marginal benefit of $2.19.
D.
producer surplus of $.30.
相关题目：
【单选题】下列语句序列执行后,x 的值为? int a=3, b=4, x=5; if( ++a
A.
5
B.
3
C.
4
D.
6
参考解析：
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