抛物线基础练习
题选择题1．抛物线
<Object: word/embeddings/oleObject1.bin>
的准线方程是
A.<Object: word/embeddings/oleObject2.bin>
B.<Object: word/embeddings/oleObject3.bin>
C.<Object: word/embeddings/oleObject4.bin>
D.<Object: word/embeddings/oleObject5.bin>
2．若直线<Object: word/embeddings/oleObject6.bin>
经过抛物线
<Object: word/embeddings/oleObject7.bin>
的焦点，则实数
<Object: word/embeddings/oleObject8.bin>
A.1 B
.2C.<Object: word/embeddings/oleObject9.bin>
D.<Object: word/embeddings/oleObject10.bin>
3．抛物线
<Object: word/embed ...