字长为7位的无符号二进制整数能表示的十进制整数的数值范围是( )。A.0~128

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问题:

字长为7位的无符号二进制整数能表示的十进制整数的数值范围是( )。

A.0~128

B.0~255

C.0~127

D.1~127

考点:计算机等级考试B笔试一级B笔试311
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根据保险法的有关规定,受益人故意造成被保险人死亡、伤残等人身保险事故,骗取保险金,构成犯罪的,应承担的责任是()。

A.经济赔偿责任

B.行政处罚责任

C.民事法律责任

D.刑事法律责任

题型:单项选择题

根吸收水和无机盐最活跃的部位是(  )

A.根冠

B.成熟区

C.分生区

D.伸长区

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Play is very important for humans from birth to death. Play is not meant to be just for children. It is a form of (1) that can tap into your creativity, and can allow you the chance to find your inner child and the inner child of others. I have collected the (2) of play here.
Play can stimulate you (3) . It can go against all the rules, and change the same (4) . Walt Disney was devoted to play, and his willingness to (5) changed the world of entertainment. The next time you are stuck in a (6) way of life, puI1 out a box of color pencils, modeling clay, glue and scissors, and (7) and break free. You will be amazed at the way your thinking (8) .
Playing can bring greater joy into your life. What do you think the world would be like if (9) each day in play I bet just asking you this question has (10) . Play creates laughter, joy, entertainment, (11) . Starting today, try to get 30 minutes each day to engage in some form of play, and (12) rise!
Play is known (13) . Studies show that, as humans, play is part of our nature. We have the need to play because it is instinctive and (14) . With regular play, our problem-solving and (15) will be in much better shape to handle this complex world, and we are much more likely to choose (16) as they arise. It creates laughter and freedom that can instantly reduce stress and (17) to our daily living.
Play can (18) , curiosity, and creativity. Research shows that play is both a "hands-on" and "minds-on" learning process. It produces a deeper, (19) of the world and its possibilities. We begin giving meaning to life through story making, and playing out (20) .

题型:单项选择题

直齿旋转刮板模刮出的外圆是()。

A.基园

B.度园

C.齿根园

D.齿顶园

题型:单项选择题

下图是调查小组同学从当地主管部门获得的某物种种群数量的变化图,据此不能得出的结论是()

A.1—5年种群呈J型增长

B.20—30年之间种群增长率为零

C.15年时种群的数量最少

D.15—20年间种群数量不断减少

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