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【单选题】
某圆的一条弧长为π厘米,半径为2厘米,那么弧所对的圆心角为(  )
A.
90°
B.
45°
C.
180°
D.
60°
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参考答案:
举一反三
【简答题】Fill in the blankets:(注意大小写) Last sunday was the __1___ day ever in this country. The roads were __2__ in some areas, and the underground was a total __3__. But people have many ways to __4__. They tr...
【单选题】Refer to Table 28-2. How many people were employed in Baltivia in 2009?
A.
a. 9,600
B.
b. 10,600
C.
c. 11,000
D.
d. 11,200
【判断题】截流日期一般多选择在枯水期初、流量有显著下降的时候。( )
A.
正确
B.
错误
【简答题】单词拼写(共10小题;每小题1分,满分10分) 1. I think he did it on p_____. 2. Many people were killed or i____ during the earthquake. 3. In class, you should be a____ in answering the questions your teacher asks. 4. She...
【单选题】下列哪个函数可以用来绘制圆形 ?
A.
imagecreate()
B.
imageellipse()
C.
imagefill()
D.
imagearc()
【单选题】烧伤6:烧伤病人第二个24小时输液量,应为第一个24小时输液量的:
A.
总量相同
B.
总量的1/2
C.
胶、晶体液各1/2量,加生理需要量不变
D.
总量的1/4
E.
以上都不对
【简答题】also present serious problem. There were many people 10._________
【单选题】Many people were working around the clock, _supplies to Yu Shu Qinghai Province after the earthquake.
A.
sending
B.
to send
C.
having sent
D.
to have sent
【简答题】成人,体重60公斤,某日下午洗澡时不慎滑入热水池内,4时送入医院急诊检查:面部、胸、腹部、两前臂、两手及两小腿和足部 II ° 、 III ° 烧伤。下午5时开始输液,6时进手术室清创,晚8时回病房。 请根据病例回答( 要求写明计算过程和结果。) 1. 患者烧伤的总面积是多少? 2. 患者烧伤后第一个24小时应补液体总量是多少?计算伤后前8小时应输入的液体量。 3. 患者烧伤后第二个24小时应补液...
【单选题】对于顺序表,按位序号访问元素和增加/删除元素的时间复杂度为( )
A.
O(n) O(n)
B.
O(n) O(1)
C.
O(1) O(n)
D.
O(1) O(1)
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