洋地黄中毒性反应包括（）。
A.恶心、呕吐
B.视力模糊
C.黄视、绿视
D.呼吸困难
E.室性期前收缩
参考答案：A, B, C, E
关于大洲的叙述，正确的是[ ]
A、大陆就是大洲
B、大洲就是面积较大的大陆
C、大陆及其附近岛屿合称为大洲
D、大洲比大陆面积大
根据句义，用括号中所给词的适当形式填空。
1. John and Mike ___________ kites near the river now. (fly)
2. It's expensive ____________ to other countries. (travel)
3. Jim _____________ not cook five years ago. (can)
4. The _____________ day of May is his birthday. (twelve)
5. He enjoys _____________ tricks on his friends. (play)
