While_______in the factory, the students learnt a lot from the workers. A.workingB.workedC.is workingD.having worked

While_______in the factory, the students learnt a lot from the workers.

A.working

B.worked

C.is working

D.having worked


相关考题:

[A] because [B] made [C] instead [D] learnt

逐批订货法(lot-for-lot)比MPG法的维持库存费低。()

Teaching activities must be based on the students' cognitive development level and the existing experienced knowledge, thus, students' personal knowledge, students' life world and are also the important curriculum resources except textbook.A.game activitiesB.labour activitiesC.attitudeD.direct experience

Teaching activities must be based on the students' cognitive development level and theexistingexperiencedknowledge,thus,students'personal knowledge,students'Lifeworld and__________ are also the important curriculum resources except textbook.A.game activitiesB.labour activitiesC.attitudesD.direct experience

Teaching activities must be based on the students' cognitive development level and the existing experienced knowledge, thus, students' personal knowledge, students' life world and__________ are also the important curriculum resources except textbook.A.game activitiesB.labour activitiesC.attitudeD.direct experience

MariaDB中回收用户stu001关于hr数据库中表students的select权限,语句正确的是()。A.revoke select on hr.* from 'stu001'@'localhost'B.revoke select on hr.students from 'stu001'@'%'C.revoke select on hr.student from 'stu001'@'localhost'D.revoke select on hr.students to 'stu001'@'localhost'

声明并创建一个学生类Student的对象s,下列语法格式正确的是()。A.Student s = Student();B.Student s;C.Student s = new Student();D.Student s = new ();

创建students对象,_______语句可以选出第二个同学的身高。 students数据如下: age height weight 1 19 170 68 2 20 165 65 3 18 175 65A.students[1,'height']B.students.loc[2,'height']C.students.iloc[1, 1]D.students['height'][3]

【单选题】按照年龄的升序显示学生信息,正确的命令是?A.db.students.find().sort({"age":1})B.db.students.find().sort({"age":-1})C.db.students.find().sort("age")D.db.students.find().sort({"age":"asc"})

创建students对象,_______语句可以选出第二个同学的身高。 students数据如下: age height weight 1 19 170 68 2 20 165 65 3 18 175 65A.students.loc[2,'height']B.students.iloc[1, 1]C.students[1,'height']D.students['height'][3]