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There was room for all of us, and the sleeping bags kept the night coldness away. We would listen to the sound of the river, and hear the coyotes (土狼) howling along the hills not far away. Those were the cool summer nights of the mid-nineties in Southern Alberta, Canada, when the four children were young and we would lie on the trampoline (蹦床) in the backyard late at night, for the sun would not set till late in July and August. We would look at the stars up above and never grow tired of it. These were the times when I would tell the stories of my own childhood and teach the kids life’s lessons that have been remembered to this day. I chuckle (轻声地笑), as I recall the time when we heard a coyote not far away, and then I started a story about a bear approaching the trampoline. The bear came close (in the story), and the kids snuggled up to mom and me, until suddenly I’d let out a howl and grab all the kids and they would be frightened and jump up and then all laugh, “Daddy, you scared us!” Now the children are in their mid and late teens, but they fondly remember the starry nights on that trampoline. Recently my oldest daughter on her wedding day sang a song for her parents, entitled “I’ll always be your little girl”. She wrote the music and words and yes indeed: it included a memory of those starry nights. I have learned as a parent that one of the greatest gifts we can give our children as they are growing up is the time to tell them stories, or if telling stories is not that simple, perhaps read them a story. They can read their own books, but telling or reading them a story will create a close relationship with pleasant memories such as those late summer nights under the starry sky. 56. The passage is mainly about _____. A. coyotes’ effects on children         B. the relationship between children C. the author’s unforgettable experiences    D. the author’s memories of starry nights 57. The underlined part “snuggled up” probably means _____. A. lay down     B. got close     C. gave in        D. struggled forward 58. How do the children feel about their childhood? A. Very enjoyable. B. A bit regretful.     C. Rather busy.       D. Sort of dull. 59. In the last paragraph, the writer mainly wants to express _____. A. it is easy to tell stories to children     B. kids should read stories themselves C. it is important to tell or read stories to kids D. it’s necessary to spend summer nights with kids
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【简答题】流体粘性的大小用粘度表示,常用的粘度有()粘度、()粘度、()粘度。
【多选题】液体的粘性是指 ,液体粘性的大小用 表示。
A.
液体流动时分子间产生内摩擦力的性质
B.
粘度
【单选题】织物幅宽和经纱排列密度由由打纬机构的哪部分来确定?
A.
主轴
B.
钢筘
C.
牵手
D.
曲柄
【单选题】流体的运动粘度不象动力粘度可直接表示流体粘性的大小,只有()相近的流体,才可用来大致比较它们的粘性。
A.
温度
B.
密度
C.
压力
D.
质量
【简答题】流体粘性的大小用哪几种粘度表示?
【判断题】电池存放久了,用万用表测量电压为1.45V,但接上小灯泡却不发光,这主要是电源电动势变小了。( )
A.
正确
B.
错误
【多选题】关于晶闸管的导通条件,正确的应该包括( )。
A.
阳极和阴极之间加正向电压
B.
控制极和阳极之间加正向电压
C.
门极(控制极)和阴极间加足够大的正向触发电压
D.
阳极和和阴极之间加反向电压
【单选题】以下关于演习和演练的规定正确的是( )。
A.
为确保有效实施船舶保安计划的规定,应至少每三个月进行一次演练
B.
如25%船员变动且在前三个月未参加任何演练,应在变动后1周内进行演练
C.
可能有CSO,SSO,PFSO等参加的各类演习,至少每年1次
D.
以上都正确
【多选题】关于晶闸管的导通条件,正确的应该包括以下哪些?
A.
阳极和阴极之间加正向电压
B.
控制极和阳极之间加正向电压
C.
门极(控制极)和阴极间加足够大的正向触发电压
D.
阳极和和阴极之间加反向电压
【简答题】流体粘性的大小用( )表示。
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