WTO各成员国应享受的基本权利之一是：享受其他成员国开放或扩大货物、（）准入的利益。
参考答案：服务市场
Though _____ to see us, the professor gave us a warm welcome. [ ]
A. surprising
B. was surprised
C. surprised
D. being surprised
沸腾钢的优点是什么？
