【单选题】【消耗次数：1】
The student followed the teacher’s_______and finally passed the test.
①
advices
②
advice
③
advise
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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。
【单选题】
4. The instructor watched the student ____ the test.
①
to take
②
take
③
takes
④
took
【单选题】
According to the school rules, no student______ go out of the school after eleven o’clock at night without the teacher’s permission.
①
must
②
will
③
shall
④
may
【单选题】
The English teacher strongly advises that every student ____ an all English dictionary.
①
to buy
②
buying
③
in buying
④
buy
【单选题】
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.
【单选题】
若有变量说明：chars，s1[20]；执行语句：s=student；s1=s；正确的叙述是：（）。
①
二个语句都不正确
②
s所指向的字符串和s1的值都是student
③
第一个语句正确，而第二个语句不正确
④
第二个语句正确，而第一个语句不正确
【单选题】
Was it until the1990s ____ the old man finally got a house of his own?
①
when
②
that
③
which
④
how
【单选题】
John’s score on the test is the highest in the class; he ____ last night.
①
must study
②
should have studied
③
must have studied
④
is sure to study
【单选题】
_________ the teacher’s voice, the little girl became nervous.
①
Have heard
②
Hearing
③
Heard
④
Hear
【单选题】
__________ a teacher in a university, it is necessary to have at least a master’s degree.
①
To become
②
Become
③
One becomes
④
On becoming
随机题目
【单选题】
关于避雷器，下列叙述正确的是（）。
①
主要用来限制电路中的过电流?
②
主要用来限制电路中出现的过电压??
③
主要用来限制电路中的功率???
④
主要用来限制电路中的阻抗