经验是咨询科学化的( )。
A.核心 B.充要条件 C.保障 D.要求
参考答案:C
阅读理解。
My name's Charlie Street. I'm not twelve. I'm eleven. I'm not in Grade Eight. I'm in Grade Seven. I'm in
Class Two. My teacher isn't Miss Black. My teacher is Mr Grey. My phone number is 5642389.
阅读以上句子,然后根据内容填表。
黄赤交角的大小目前是
A.23°26′
B.66°34′
C.33°26′
D.56°34′