This is the first time the students () to Hyde Park. A.have goneB.have been goneC.have been goingD.are being gone
This is the first time the students () to Hyde Park.
A.have gone
B.have been gone
C.have been going
D.are being gone
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Students: Professor Lance, your lecture on cloning is very interesting！Professor: .Are you a student of biology?Students: No, I major in chemistry.A． I think soB． I'm glad to hear thatC． It must beD． It's not so interesting
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
在循环单链表中，设指针first指向头结点，当_____时表示链表为空。A．first==NULLB．first-＞link==NULLC．first-＞link==firstD．first-＞link-＞link==first
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 ();
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带头结点的单链表first为空的判定条件是：A．first == NULL;B．first-＞link == NULL;C．first-＞link == first;D．first != NULL;
【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]