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【判断题】
液体表面张力的存在力图扩大液体的表面积。是不是 ? ( )A.
正确
B.
错误
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【单选题】The film The Founding of a Republic is wonderful because about 80 stars appear in it, some of ________ are world-famous.
A.
whom
B.
who
C.
them
D.
those
【单选题】听力原文： Some people dream of being president of the United States, some of becoming stars in a Hollywood movie, and others of making millions of dollars overnight. Could a dream like that come true in r...
A.
Mechanic.
B.
Bank employee.
C.
Bank guard.
D.
Policeman.
【单选题】检索选修课程 “C2” 的学生中成绩最高的学生的学号。正确的 SELECT 语句是 。
A.
SELECT S# FORM SC WHERE C#='C2' AND GRADE＞＝ (SELECT GRADE FORM SC WHE
B.
SELECT S# FORM SC WHERE C#='C2' AND GRADE IN (SELECT GRADE FORM SC
C.
SELECT S# FORM SC WHERE C#='C2' AND GRADE NOT IN (SELECT GRADE FORM SC
D.
SELECT S# FORM SC WHERE C#='C2' AND GRADE＞＝ALL (SELECT GRADE FORM SC
【简答题】阅读理解。 Basketball stars are usually tall. The stars of other sports are sometimes short. Some of the best football players are not very tall. Short people often have better balance than tall people, so...
【单选题】The film The Founding of a Republic is wonderful because about 80 stars appear in it, some of _____ are world - famous. [ ]
A.
who
B.
whom
C.
them
D.
those
【单选题】人们的通信工具从跑马送信、电报电话到手机网络;手机的体积越来越小,但功能却越来越多。这表明( )
A.
新事物是对旧事物的彻底否定
B.
新事物的发展变化是杂乱无章的
C.
事物的任何变化都是根本性质的变化
D.
事物的发展是一个由低级到高级的过程
【单选题】检索选修课程“C2”的学生中成绩最高的学生的学号。正确的SELECT语句是()。
A.
SELECT SNO FORM. SC WHERE CNO='C2' AND GRADE >= ( SELECT GRADE FORM. SC WHERE CNO='C2' );
B.
SELECT SNO FORM. SC WHERE CNO='C2' AND GRADE IN ( SELECT GRADE FORM. SC WHERE CNO='C2' );
C.
SELECT SNO FORM. SC WHERE CNO='C2' AND GRADE NOT IN ( SELECT GRADE FORM. SC WHERE CNO='C2' );
D.
SELECT SNO FORM. SC WHERE CNO='C2' AND GRADE >= ALL ( SELECT GRADE FORM. SC WHERE CNO='C2' );
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