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He is always thinking of () others.AhelpingBhelpsChelpDhelped
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第1题：
B
We once had a poster competition in our fifth grade art class.
“You could win prizes，’’our teacher told US as she wrote the poster information on the blackboard. She passed out sheets of construction paper while continuing，“The first prize is ten dollars. You just have to make sure that the words on the blackboard appear somewhere on your poster. ”
We studied the board critically. Some of US looked with one eye and held up certain colors against the blackboard，rocking the sheets to the fight or left while we conjured up our designs. Others twisted their hair around their fingers or chewed their erasers while deep in thought. We had plans for that ten—dollar grand prize，each and every one of US. I'm going to spend mine on candies，one hopeful would announce，while another practiced looking serious，wise and rich.
Everyone in the class made a poster. Some of us used parts of those fancy paper napkins， while others used nothing but colored construction paper. Some of US used big designs，and some of us preferred to gather our art tidily down in one comer of our poster and let the space draw the viewer's attention to it. Some of US would wander past the good students’ desks and then return to our own projects with a growing sense of hopelessness. It was yet another grown-up trick of the soil they seemed especially fond of。making all of US believe we had a fair chance，and then always—always—rewarding the same old winners.
I believe I drew a sailboat，but I can’t say that with any certainty. I made it. I admired it. I determined it to be the very best of all of the posters I had seen，and then I turned it in.
Minutes passed.
No one came along to give me the grand prize，and then someone distracted me，and I probably never would have thought about that poster again.
I was still sitting at my desk，thinking，What poster? When the teacher gave me an envelope with a ten-dollar bill in it and everyone in the class applauded for me.
46. What was the teacher's requirement for the poster?
A. It must appear in time.
B. It must be done in class.
C. It must be done on a construction sheet.
D. It must include the words on the blackboard.
正确答案：D
【解析】细节理解题。由第二段末句，老师说的话You just have to make sure that the words on the blackboard appear somewhere on your poster可知。 -
第2题：
阻塞赋值只能在always块内使用，非阻塞赋值可以在always块外使用。
错误 -
第3题：
3、下列哪一个表述是正确：
A．always@(posedge CLK or RST)
B．always@(posedge CLK or negedge RST or A)
C．always@(posedge CLK or D or Q)
D．always@(posedge CLK or negedge RST)
deductive,guided discovery -
第4题：
2、选出正确的触发器描述
A．module D_FF (input D,Clock, output reg Q); always@(Clock,D) Q ＜= D; endmodule
B．module D_FF (input D,Clock, output reg Q); always@(posedge Clock) Q ＜= D; endmodule
C．module D_FF (input D,Clock, output reg Q); always@(negedge Clock) Q ＜= D; endmodule
D．module D_FF (input D,Clock, output reg Q); always_ff@(posedge Clock) Q ＜= D; endmodule
E．module D_FF (input D,Clock, output reg Q); always_ff Q <
可以设置为点击某一元素来触发另一元素的动画效果;可以设置为点击某一元素来触发其自身的动画效果;可以设置为点击某一元素来同时触发多个元素的动画效果;可以设置为单击某一元素来依次触发多个元素的动画效果 -
第5题：
thinking 培养逻辑思维
错 -
第6题：
下列描述中采用时钟clk正边沿触发且rst异步低电平复位的代码描述是
A．always @ (posedge clk, negedge rst) if (rst)
B．always @ (posedge clk, rst) if (!rst)
C．always @ (posedge clk, negedge rst) if (!rst)
D．always @ (negedge clk, posedge rst) if (rst)
always @ (posedge clk, negedge rst) if (!rst)