CCD的像素数和分辩率是数码相机的两个重要的指标,CCD的像素数和数与相机的分辩率是相等的。
参考答案:错
阅读理解
I'm Henry. My best friends are Frank and Cindy. We often do many things together(一起). Frank lives next to my home and we are in the same class. He is thirteen years old and tall. He is of medium build. He has curly hair and blue eyes. He's good-looking and very clever (聪明的). He's good at math and
often helps me with my homework. He likes wearing black pants and yellow T-shirts.
Cindy doesn't go to my school. She's eleven years old. She is thin and of medium height. She has
curly blonde hair and her eyes are brown. She is good-looking, too.But she is a little bit shy. S he is good
at playing the guitar. Her favorite object at school is music. She often teaches Frank and me to play the
guitar after class.
The three of us have great fun together, and we help each other(互相)and sometimes play games
at my home.
1. What things do the three children do together?
They____.
A. play baseball
B. play games
C. play the guitar
D. both B and C
2. ____eyes are blue.
A. Frank's
B. Cindy's
C. My
D. Henry's
3. ____good at math.
A. Frank is
B. Cindy is
C. I am
D. Henry is
4. ____is good-looking, but a little bit shy.
A. Frank
B. Cindy
C. Henry
D. My friend
5. —Where do they play games?
— _______.
A. At school
B. At Frank's home
C. At Cindy's home
D. At Henry's home
测量使用的平面直角坐标是以()为坐标原点,()为x轴,以()为y轴。