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阅读理解。 Marsha’s House Come and enjoy home on your trips. We offer rooms of different sizes  and delicious food. No.5 Park Road Tel: 543-002 Country Life Market Our fruits and vegetables come in fresh every morning. Special prices for the first month. Opening hours:10:00a.m.-10:00p.m No. 3 Clinton Street Tel:544-996 Wawa Village The best school for our dog. They learn everything here. Also a nice home for them when you are out of town. Call 544-741  24 hours Next Wave Music Store After 10 years of teaching piano, Arnold Swenson has made his first CD! Come and meet him this weekend. Special presents for the first 50 people. Sat. 7:00 p.m Call Diana 543-616 1. Marsha’s House may be a . A. supermarket B. hotel C. restaurant D. cinema 2. If you want to buy apples, you should go to . A. Marsha’s House B. Country Life Market C. Wawa Village D. Next Wave Music Store 3. Arnold Swenson may be a(n) . A. musician B. athlete C. film star D. singer 4. If you want to get a present from Next Wave Music Store, you should . A. get there before 7:00 a. m B. be the first person to get there C. call 543-616 D. not get there later than 50 people on Saturday 5. The four forms are . A. novels B. four pieces of news C. advertisements D. essays
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【多选题】汽油滤清器更换的时候要注意
A.
有方向性,不能安装反向
B.
需要提前释放燃油压力
C.
需要注意通风,防火
D.
一旦皮肤接触汽油要及时清洗
【判断题】汽油滤清器的安装有方向性 。
A.
正确
B.
错误
【单选题】控制系统的开环传递函数为【图片】,则该系统的根轨迹分支数为( )。
A.
1
B.
2
C.
3
D.
4
【单选题】控制系统的开环传递函数【图片】,则闭环特征方程为( )。
A.
1+ N(s) = 0
B.
N(s)+M(s) = 0
C.
N(s) = 0
D.
与是否为单位反馈系统有关
【单选题】汽油滤清器______方向性。
A.
B.
没有
C.
都有可能
【单选题】机械工程自动控制系统的基本要求是稳定性、准确性和( )
A.
美观性
B.
实用性
C.
快速性
D.
以上都不对
【单选题】纵波(P波)和横波(S波)的传播速度在从莫霍面到古登堡面之间的变化是 [     ]
A.
都明显下降
B.
都明显增加
C.
S波完全消失、P波突然下降
D.
P波完全消失、S波突然下降
【单选题】( )看板一般适用于流水线之间和流水线与仓库之间
A.
内协看板
B.
外协看板
C.
信号看板
D.
在制品
【简答题】认知心理学对学习的研究分为两个阵营:( )和( )。
【单选题】若某负反馈控制系统的开环传递函数为【图片】 ,则该系统的闭环特征方程为 ( )
A.
B.
C.
D.
与是否为单位反馈系统有关
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