问题
单项选择题
家用空调器的温度传感器,属于()
A.输入元件
B.反馈元件
C.比较元件
D.执行元件
答案
参考答案:B
家用空调器的温度传感器,属于()
A.输入元件
B.反馈元件
C.比较元件
D.执行元件
参考答案:B
选择正确单词完成下列短文。 |
I 1 writing a letter 2 my cousin. I write with a pen. I write 3 a piece of paper. 4 the top of the letter, I write the day. What day is it? It's Thursday, March 12th. I write my name at the bottom of 5 letter. I put my letter in an envelope. Now, I write the address on the envelope. |
( ) 1. A. is ( ) 2. A. on ( ) 3. A. on ( ) 4. A. Are ( ) 5. A. the | B. are B. to B. with B. On B. on | C. am C. in C. at C. Up C. many |
根据上面的短文回答问题。 1. What are you doing? 2. What day is it? 3. Where do you write your name? 4. Do you put your letter in an envelope? 5. Where do you write the address? |