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问题 单项选择题

拉结石要至少在满墙厚（）能拉住内外石块。

A.l/2

B.1/3

C.2/3

D.3/4

答案

参考答案：B

连词成句

Make sentences. 单词大排队，看谁站得对！

1.

                                                                                                                                     .

2.

                                                                                                                                       .

3. 

                                                                                                                                          .

4. 

                                                                                                                                         .

5.

                                                                                                                                         .
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单项选择题

客户的固定电话终端和小灵通终端拥有同一个号码，作为主叫时在被叫方显示的是同一个号码的业务是（）。

A.灵通无绳

B.超级无绳

C.一机双号

D.一号通
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