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【简答题】
二极管最主要的特点是____,使用时应考虑的两个主要参数是______和__ __。
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反馈参考答案：
举一反三
【单选题】若要用下面的程序片段使指针变量p指向一个存储字符型变量的动态存储单元，则应填入 char * p；p= ( ) malloc (sizeof (char))；
A.
char
B.
char *
C.
(* char)
D.
(char *)
【单选题】听力原文：W: Hello. This is Dr. Gray's office. We're calling to remind you of your 4:15 appointment for your annual check-up tomorrow. M: Oh, thanks. It's a good thing you called. I thought it was 4:15 tod...
A.
The man was confused about the date of the appointment.
B.
The man wants to change the date of the appointment.
C.
The man is glad he's got in touch with the doctor.
D.
The man can't come for the appointment at 4: 1
【多选题】下面说法正确的是( )。
A.
社会实验法特别适于搜集正在发生的社会现象
B.
根据被研究对象所包括的范围、特点的不同，社会调查可分为全面调查、抽样调查、典型调查和个案调查等
C.
观察法是迄今为止最严密、最科学的经验研究法
D.
文献分析法既可作为研究的主要方法，又可作为研究的辅助方法
【单选题】听力原文：M: Good morning. This is John Parker speaking. I'm just ringing to confirm my appointment with Mr. Smith for this afternoon. W: Yes. Mr. Smith is expecting you at 3 o'clock. Why is the man making...
A.
He wants to make an appointment with Mr. Smith.
B.
He wants to make sure that Mr. Smith will see him.
C.
He wants to change the time of the appointment.
D.
He wants the woman to meet him at three o'clock.
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