可能继发精索静脉曲张的是（）
A.肾细胞癌
B.肾胚胎瘤
C.肾盂癌
D.成人肾脏多形性腺癌
E.前列腺癌
参考答案：A
用所给词的正确时态填空。
1. I would like (eat) different vegetables every day.
2. The girls (visit) their teacher last Sunday.
3. Don't make any noise! (别吵) My grandfather (sleep) at home.
4. My parents (be) busy yesterday.
5. Some boys (go) swimming on May 1st, 2010.
病毒性脑膜炎与化脓性脑膜炎主要区别在于
A．年龄大小B．发病季节C．抽搐次数D．脑膜刺激征E．脑脊液变化
