问题
单项选择题
韧性最好的陶瓷是（）。
A、单质铁
B、针状莫来石
C、掺杂钛酸锶
D、部分稳定氧化锆
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
韧性最好的陶瓷是（）。
A、单质铁
B、针状莫来石
C、掺杂钛酸锶
D、部分稳定氧化锆
参考答案：D
| 阅读下面对话，从方框内7个选项中选择5个恰当的句子完成此对话。 | |
| A: Hello, is that Wu Bin speaking? B: Yes. Who's that? A: This is Tian Hong. Are you free this Saturday evening? B: 1_______. A: I've got two tickets to Jay Chou's concert. 2_______. B: Certainly, I'd love to. He's my favorite singer. Thanks for your invitation. 3_______. A: Let's meet at the gate of the park at four o'clock. B: 4_______ I want to buy him a gift. A: OK. I'll get there at three. Shall we go to the shopping center to buy the gift? B: 5_______ See you then. A: See you.
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