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【多选题】
评定表面粗糙度时,规定取样长度是为了______,规定评定长度是______。一般情况,评定长度______5倍取样长度。
A.
使测量方便  
B.
等于    
C.
减少波度影响  
D.
考虑加工表面不均匀
E.
小于    
F.
大于    
G.
等于
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【简答题】请 根据以下邀请函完成一份备忘录。 Dear Mike, This Saturday (June 1st, 2019) is my birthday and my parents will hold a celebrating party for me at home at 6 pm . I am glad to invite you to come to the party. Bl...
【单选题】I will cook for my mother __________Mother’s Day.
A.
for
B.
in
C.
on
【单选题】在T形梁正截面承载力计算中,假定在受压区翼缘计算宽度内 ( )
A.
压应力均匀分布
B.
压应力按抛物线型作均匀分布
C.
随着梁高不等,压应力有时均匀分布,有时则非均匀分布
D.
压应力按梯形作均匀分布
【单选题】在 T 形截面梁正截面承载力计算中,假定在受压区翼缘计算宽度范围内混凝土压应力分布是( )
A.
均匀分布
B.
按抛物线形分布
C.
按三角形分布
D.
部分均匀
【单选题】听力原文:W: Are you coming for dinner this evening? My mum will cook a big meal. M: Yes, I'll be glad to. Q: What will the mother do? (19)
A.
Coming for dinner.
B.
Make a cake.
C.
Make a big meal.
【单选题】在T形梁正截面承载力计算中,假定在受压区翼缘计算宽度内()
A.
压应力均匀分布
B.
压应力按三角形分布
C.
压应力按抛物线型分布
D.
压应力部分均匀分布,部分非均匀分布
【单选题】After I call my mother, I ( ) something for dinner.
A.
cook
B.
will cook
【简答题】My mother will cook delicious food on ______ Monday, you can have ______ lunch in my house.
【简答题】用所给动词的适当形式填空。 1. My mother began_____ (light) the fire to cook the breakfast. 2. Have you_____ (feed) the animals on the farm? 3. I am going to get my computer_____(repair) the day after tomorrow. 4. ...
【单选题】My mother ______  dinner when I got home yesterday. [     ]
A.
cooks
B.
will cook
C.
is cooking
D.
was cooking
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