【单选题】【消耗次数：1】
What role does a teacher play in the following activity? The teacher asks a student a question “Have you ever bought clothes with problems?” If the student doesn’t seem to be ready, the teacher says “for example, a shirt without...” and points to the buttons on his own shirt or jacket.
①
Controller
②
Assessor
③
Organizer
④
Prompter.
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What role does a teacher play in the following activity? When a student has made a sentence with borrow, “I borrowed a paper to write a letter”, the teacher says, “Well, we don’t say a paper, we say a piece of paper.”
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【单选题】
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【单选题】
What role does a teacher play in the following activity? T: do you have any hobbies? S: yes, I like singing and dancing. T: Uhm, and...? S: I also collect coins. T: Oh, really, how many...have you already...collected?
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【单选题】
What role does a teacher play in the following activity? The teacher writes one of five numbers (1-5) on a number of cards (the same number as the students). Each student draws one card. Those who have drawn number 1 will form group1, and those who have drawn number 2 will form group 2. Thus the students are put into five groups in a random way.
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【单选题】
类 Teacher 和 Student 是类 Person 的子类;
Teacher t;
Student s;
// t and s are all non-null.
if (t instanceof Person ){ s=(Student)t; }
最后一条语句的结果是:（ ）
①
将构造一个Student 对象;
②
表达式是合法的；
③
表达式是错误的；
④
编译时正确， 但运行时错误。
随机题目
【简答题】
学习管理系统可以做哪些工作？