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【简答题】
请选出适当的单词或短语,并用其正确形式填空。 boil, chew, cruel, direct, sense, slide, star, swing, whisper, worn-out, badly off, content, cut off, knock, pick, star 1. She is ________ her job at the moment. 2. We shouldn’t be unhappy about being ________ — many families are much worse off than we are. 3. It’s easy to ________ my car from others in the parking place; it has an advertisement of Toshiba TV on the back of it. 4. Several months ago Harbin ________ its water supply for four days because of pollution fear in Songhua River, which is Harbin’s main water source. 5. She has ________ some thirty films in all her life. 6. The boy rode very fast and ________ an old man. 7. She ________ into the room not wanting to wake the baby. 8. Anyone who likes watching people suffer is ________. 9. These cars are ________ and must be replaced. 10. When water ________, it changes into steam. 11. Do everything step by step, and don’t bite off more than you can ________. 12. His boss was out on business and couldn’t come back in time, so ________ him to call off the meeting. 13. Daniel Radcliffe, who plays Harry Potter, attended the premiere Sunday Evening along with other cast members including Machael Gambon, who ________ as the kindly Albus Dumbledore. 14. The ________ of the ship made many people seasick. 15. In a low voice, she ________ to me that someone was sliding into the room. 16. There is no ________ in going by boat when the plane is just as cheap and much quicker.
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【多选题】关于滚子链的主要设计参数,下列说法中不正确的是( )(112-5.2.2)
A.
链的节距越大,承载能力越强。
B.
滚子链的承载能力较大时,链传动可采用双排链或多排链,但排数不能超过五排。
C.
过渡链节制造复杂,尽量不采用。
D.
为了使链条的两端便于连接,链节数尽量取奇数。
E.
为了使链条的两端便于连接,链节数尽量取偶数。
【多选题】某生产企业下列项目中,可以抵扣进项税的有
A.
外购大型生产设备
B.
购进生产设备修理用零备件
C.
购进职工食堂改造用建筑材料
D.
外购生产用水、电、气
【单选题】所谓多边形是指利用鼠标指针依次定义出图形各个边脚所形成的封闭区域,执行选单命令 ( )
A.
Polygon
B.
Line
C.
Bezier
D.
Arc
【判断题】音乐是文学的仆从。()
A.
正确
B.
错误
【判断题】在链传动中由于过大的动载会直接影响链传动的性能和使用寿命,因此在设计时采用较多的链轮齿数和较小的链节距;在工作时链条不要过松,并尽量限制链传动的最大转速,可降低链传动的动载。
A.
正确
B.
错误
【简答题】当链节数为偶数时,采用 或 连接;当链节数为奇数时采用 连接,此法抗拉强度较 , 因此尽量不采用。
【简答题】对于长距离的通风,一般采用PVC塑料、高频热塑焊接工艺、拉链式软管,通风管应优先采用加长的风管节,尽量减少()个数,管路直径大于1m。
【单选题】48美国最大的城市,也是联合国总部所在地的是( )。
A.
纽约
B.
华盛顿
C.
旧金山
D.
洛杉矶
【单选题】所谓多边形是指利用鼠标指针依次定义出图形各个边脚所形成的封闭区域,执行选单命令 ( )。
A.
Arc
B.
Line
C.
Bezier
D.
Polygon
【单选题】美国最大的城市,也是联合国总部所在地的是()。
A.
纽约
B.
华盛顿
C.
旧金山
D.
落杉机
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