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【简答题】
Peter was a small boy.He lived with his parents in a small house near some hills.The people there were all poor. One night it was very dry and windy. When everybody was asleep,Peter suddenly heard some noise.It came out from the kitchen(厨房). He got up and walked to the kitchen.He found that the wood beside the stove(火炉)was burning. There was no water tap(水龙头)in the house,so he could not put out(扑灭)the fire.He shouted loudly to wake up everyone in the house.They all left their houses quickly. At last the fire was put out by the firemen.Many houses were burnt.But nobody was hurt in the fire. 1.Peter lived with his ________. A.sisters B.brothers C.uncles D.parents 2.One night he found that ________ beside the stove was burning. A.the table B.the wood C.the door D.the window 3.________,so he could not put out the fire. A.Everybody was asleep B.He couldn't shout loudly C.The kitchen was very big D.There was no water tap in the house 4.Peter knocked on the doors of many houses ________. A.to wake the people up B .to get some water C.to find his classmates D.to visit them 5.________ hurt in the fire. A.People in other houses were B.Peter's parents were C.Nobody was D.Peter was
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【简答题】外螺纹大径用()线,小径用()线表示,在垂直螺纹轴线的投影面视图中,表示牙底的用细实线,圆上画出它的()圈。
【单选题】下列关于C语言中字符常量与字符串常量的叙述中,错误的是______
A.
字符常量是用单撇号括起来的一个字符
B.
空格字符也可用作字符常量
C.
字符串常量是用单撇号括起来的一个字符序列
D.
字符串常量是用双撇号括起来的一个字符序列
【单选题】属于确认致癌物的是()
A.
临床已见个别癌症病例
B.
动物试验有明确证据,但流行病学调查证据有限
C.
流行病学调查有明确证据
D.
体外试验有明确证据
E.
动物试验有明确证据,但流行病学调查证据缺乏
【简答题】外螺纹直径用 表示。
【简答题】如图所示,水平地面上有两个静止的物块 A 和 B , A 、 B 的质量分别为 m 1 = 2kg , m 2 = 1kg ,它们与地面间的动摩擦因数均为 μ = 0.5 。现对物块 A 施加一大小 I = 40N·s ,水平向右的瞬时冲量,使物块 A 获得一个初速度, t = 1s 后与物块 B 发生弹性碰撞,且碰撞时间很短, A 、 B 两物块均可视为质点, g = 10m/s 2 ...
【判断题】有价证券就是指股票。( )
A.
正确
B.
错误
【单选题】所谓语音合成,是计算机根据语言学和自然语言理解的知识模仿人的发声自动生成语音的过程。下列有关语音合成(文语转换)的叙述中,错误的是________。
A.
文语转换通常首先对文本进行分析,将文字序列转换成一串发音符号
B.
语音合成需要语音库的支持,其中存储了大量预先录制的语音基元的波形声音
C.
语音合成目前广泛应用于有声查询、语言学习、自动报警、残疾人服务等领域
D.
目前计算机合成语音可以与人的口语比美,有些语音合成系统可以合成美妙的歌曲
【简答题】将股票的期值按当前的市场利率和证券的有效期限折算成今天的价值,也就是股票未来收益的当前价值,这是指股票的( )。
【单选题】将股票的期值按当前的市场利率和证券的有效期限折算成今天的价值,也就是股票未来收益的当前价值,这是指股票的( )。
A.
期值
B.
现值
C.
票面价值
D.
价格
【单选题】下列关于C语言中字符常量与字符串常量的叙述中错误的是( )。
A.
字符常量是用单撇号括起来的一个字符
B.
空格字符也可以用作字符常量
C.
字符串常量是用单撇号括起来的一个字符序列
D.
字符串常量是用双撇号括起来的一个字符序列
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