超星 - 第6章测验 - 查题吧

判断题

All welfare effects of a regional agreement agreement are static.

A. 对
B. 错

判断题

Under the variable levy system of the European Union, EU farms are protected against import competition by tariffs that vary inversely with the world price.

A. 对
B. 错

判断题

Within a customs union, broader markets may also promote greater competition among producers.

A. 对
B. 错

判断题

Following World War II, Western European nations suffered from balance-of-payments deficts due to reconstruction.

A. 对
B. 错

判断题

When Western European democracies removed trade barriers and began to form the European Community, one of their hopes was that their economic and financial ties would bind them togrther so that it would not be in their interest to go to war again.

A. 对
B. 错

判断题

The EU has abolished restrictions on agricultural products traded internally.

A. 对
B. 错

单选题

always @(A,B) begin‍‏M1 <= A ;‍‏M2 <= B&M1;‍‏Q <= M1|M2; end‍‏当A和B同时从0变为1后，M1,M2与Q分别为多少？

A. 1，1，1
B. 0，0，0
C. 1，1，0
D. 1，0，0

单选题

begin‎Y1 <= #5 A^B;‎Y2 <= #4 A|B;‎Y3 <= #8 A&B;‎end‎以上语句共耗时多少个时间单位？

A. 5
B. 4
C. 17
D. 8

单选题

module andd(A,B,Q);‍output Q ;‍input A,B;‍reg Q;‍always @(A,B )‍if (A==0)‍if (B==0) Q=0;‍else Q=1;‍endmodule‍其中，else Q=1;与哪句语句对应？

A. endmodule
B. if(A==0)
C. if (B==0) Q=0;
D. always @(A,B )

单选题

module andd(A,B,Q);‍‍output Q; input A,B;‍‍reg Q;‍‍always @(A,B )‍‍ if (A==0)‍‍begin if(B==0) Q=0;‍‍end‍‍else Q=1;‍‍endmodule‍‍其中，else Q=1;与哪句语句对应?

A. if(A==0)
B. if(B==0) Q=0;
C. ‍endmodule
D. ‍always @(A,B )

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