等高线是( )。
A.一条折线 B.一条直线C.二条折线 D.三条折线
参考答案:C
根据句意和单词的首写字母完成句子。
1. You are not s to smoke here.
2. What will h if they have the party tomorrow?
3. If he r the bike, he will be late.
4. I want to have a party. Can you help me o it?
5. Cut the apple into h .
脊柱裂可分为哪几类()
A.脊膜膨出
B.脊髓膨出
C.脊髓神经膨出
D.脑脊液膨出
E.脊髓脊膜膨出