郑和下西洋成为中国历史上时间最长、规模最大、范围最广的商务活动。（）
参考答案：对
----- Jack, is there __________ in today’s newspaper? ----- No, nothing.
A．anything important
B．something important
C．important anything
D．important something
矿用钢丝绳的绳股多为8股。（）
