Half of the workers here ___ under 30 ___.

答案查看网，轻松搜题/搜资源

【单选题】【消耗次数：1】

① is/years

② are/year old

③ is/years old

④ are/years of age

参考答案：

复制

纠错

➡️如需代学继续教育，请点击这里

相关题目

【单选题】 By the time she is 50 years old, she ＿＿＿＿＿ an inmate of the prison for over half of her life.

① would be

② would have been

③ will have been

④ will be

查看完整题目与答案

【单选题】 His father began to work ______ he was seven years old.

① as old as

② as early as

③ as soon as

④ as much as

查看完整题目与答案

【单选题】 But for the party, the old man______of hunger fifteen years ago.

① must die

② must have died

③ would die

④ would have died

查看完整题目与答案

【单选题】 5. His father began to work ____he was seven years old.

① as old as

② as early as

③ as soon as

④ as much as

查看完整题目与答案

【单选题】 When my own son was five years old, I became （）for another baby.

① eager

② desire

③ yearn

④ wish

查看完整题目与答案

【单选题】 But for the immediate help from his neibour, the old man______of hunger fifteen years ago.

① must die

② must have died

③ would die

④ would have died

查看完整题目与答案

【单选题】 Hes worked here___three years.

① since

② in

③ for

查看完整题目与答案

【单选题】 She has worked here_______many years.

① since

② for

③ during

查看完整题目与答案

【单选题】 Lucy has been a student there for nearly one and [填空] half years．

① a

② an

③ the

④ /

查看完整题目与答案

【单选题】 The old man returning home after eight years absence to find that all the neighbors he had known were no longer there. Is this a complete sentence?

① Yes

② No

查看完整题目与答案

随机题目

【单选题】在Visual FoxPro中，打开一个数据表文件的命令是

① OPEN DATABASE数据表文件名

② USE数据表文件名

③ OPEN数据表文件名

④ CREATE数据表文件名

查看完整题目与答案

【单选题】执行DIMENSION M(6), N(4,5)语句后，数组M与N的元素个数分别为

① 6 20

② 6 5

③ 7 21

④ 6 9

查看完整题目与答案

【单选题】执行命令INDEX on 姓名 TAG index_name 建立索引后,下列叙述错误的就是

① 此命令建立的索引就是当前有效索引

② 此命令所建立的索引将保存在.idx文件中

③ 表中记录按索引表达式升序排序

④ 此命令的索引表达式就是姓名,索引名就是index_name

查看完整题目与答案

【单选题】使用 SQL 语句将学生表 S 中年龄（AGE）大于 30 岁的记录删除，正确的命令是

① DELETE FOR AGE30

② DELETE FROM S WHERE AGE30

③ DELETE S FOR AGE30

④ DELETE S WHERE AGE30

查看完整题目与答案

【单选题】在Visual FoxPro中进行参照完整性设置时,要想设置成:当更改父表中的主关键字段或候选关键字段,自动更改所有相关子表记录中的对应值。应选择( )

① 限制 (Restrict)

② 忽略 (Ignore)

③ 级联 (Cascade)

④ 级联 (Cascade) 或限制 (Restrict)

查看完整题目与答案

【单选题】在查询设计器中，用于编辑连接条件的选项卡是

① 字段

② 连接

③ 筛选

④ 排序依据

查看完整题目与答案

【单选题】在 SQL语句中 , 与表达式工资 BETWEEN 1210 AND 1240功能相同的表达式就是

① 工资 =1210 AND 工资 =1240

② 工资 1210 AND 工资 1240

③ 工资 =1210 and=1240

④ 工资 =1210 OR 工资 =1240

查看完整题目与答案

【简答题】在Visual FoxPro中,运行当前文件夹下的表单T1、SCX的命令就是[填空1] 。

查看完整题目与答案

【多选题】关于记录的逻辑删除,叙述正确的有( )。

① 逻辑删除的记录还可以恢复

② 逻辑删除的记录还可以浏览

③ 逻辑删除的记录还可以替换

④ 逻辑删除的记录等待一段时间后,自动永久删除

查看完整题目与答案

【单选题】把实体-联系模型转换为关系模型时,实体之间多对多联系在关系模型中就是通过

① 建立新的属性来实现

② 建立新的关键字来实现

③ 建立新的关系来实现

④ 建立新的实体来实现

查看完整题目与答案