根据数码相机最常用的用途可以简单分为单反相机、( )相机、长焦相机和家用相机。
A.单反
B.长焦
C.卡片
D.家用
参考答案:C
阅读判断所给句子的正确“T”或者错误“F ”。
I am an American boy. My name is Jerry Black. You can call me Jerry. I have a sister, Ginny. We are
twins (双胞胎). But we are very different. I have a long face with a high nose, while she has a round face
with a small nose. I like meat and rice. But she likes vegetables and wheat. I like loud music. She likes light
music. My father is a doctor in a hospital. My mother runs (经营) a clothing store. We have another family
member, Beibei. She is a cute dog. She will have a puppy (小狗) soon.
( )1. Jerry and Ginny are twins.
( )2. Ginny's father is Mr. Black.
( )3. Jerry and Ginny look the same.
( )4. Jerry's mother has no job.
( )5. Jerry's family has five members.
如何进行密度的温度校正?