题目内容

方式2是双向传输，只有()组端口可以设定成该方式，适用于双机之间数据的并行传送。

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如果8255A的端口地址为300H～303H，A组和B组均为方式0，端口A为输出，端口B为输入，PC3～PC0为输入，PC7～PC4为输出，填空完成出8255A的初始化程序段；要求实现将从端口C低4位读入的值从高4位送出。MOV DX,（）MOV AL,（）OUT DX,ALMOV DX,（）IN AL,DXMOV CL,()() AL,CLOUT DX,AL

Now listen to a voice message from WeChat and fill in the blanks according to what you have heard. The words in brackets will give you some hints.Hello, Sally! You wanna know how to get to the airport 1______ (when?)? Well, subway, I mean, the metro, is probably the best choice. Traffic is horrible here. Take Subway Line 2. The station is 2 _ (how many?) blocks away from your hotel. Of course, the easiest way is to take 3 (what?). Actually you can ask the hotel to call an express for you. It is about 100 yuan. You can 4 _ (do what?) with others if you like. The third option is to take the tram and then change to 5 _ (what?), if you are not in a big hurry. It is also pretty convenient, but it will take you more than 6 (how long?) to get there. Just walk from your hotel all the way to the 202 tram terminal. Take the tram to 7 _ (where?). As you get off the tram, go across the street and walk straight ahead until you see 8 __ (what?). There, you should take Bus 406. The bus goes 9 _ (how?) to the International Airport. Whatever, you should probably get ready to 10 _____ (do what?) now.

减轻不均匀沉降危害的措施

①同期建造的两相邻建筑物，低（或轻）者受高（或重）者的影响； ②不同期建造的两相邻建筑物，原有建筑物受邻近新建高（或重）的建筑物的影响。

A. 对
B. 错