可能会导致消化不良症状的药物（）。
A.铁剂
B.大环内酯类抗生素
C.茶碱
D.洋地黄制剂
E.第3代头孢类抗生素
参考答案：A, B, C, D
A: I had a great time ______ games with my friends in the park yesterday.
B: How great! But I didn’t have any time _______ at all, I had to get ready for the test.
A．playing; to play
B．play; to play
C．playing; playing
D．to play; playing
大陆地震
