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【简答题】
After six months’ busy work, Tom wants to take a vacation. He thought about going to America, but decided Majorca, an island (岛) in Spain. Every Tom goes for vacation, he just stays in the hotel all day and night. The thing he does is visiting the club. It’s still within (在……之内) the . It’s not at all. This time Jack, Tom’s friend, told him that Majorca is a beautiful place, and he could have lots of things to do and have a lot of . He also , “There are very interesting parks, you can have a great time. There are many exciting sports too, such as climbing the mountains and . They can bring happiness to you. You’ll all your problems.” Tom is glad to hear that. He is sure that he is having a great vacation. 小题1: A.to B.for C.on D.in 小题2: A.week B.month C.day D.time 小题3: A.only B.different C.busy D.same 小题4: A.island B.city C.hotel D.trip 小题5: A.cheap B.interesting C.beautiful D.boring 小题6: A.money B.fun C.work D.illness 小题7: A.thought B.heard C.planned D.said 小题8: A.so B.but C.because D.if 小题9: A.going riding B.going sleeping C.renting videos D.watching TV 小题10: A.remember B.take C.forget D.make
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举一反三
【单选题】已知事件A.B仅发生一个的概率为0.3,且P(A)+P(B)=0.5,则A.B至少有一个不发生的概率为( ).
A.
0.5
B.
0.9
C.
0,7
D.
0.1
【简答题】毛型织物的特性有哪些?
【单选题】已知点P(0, 3)与点Q(2a+b,a+2b)关于原点对称,则 的值为(  )
A.
2
B.
2
C.
0.5
D.
0.5
【单选题】已知X服从均匀分布[-4,4],那么P(0<X<10)=( )。
A.
0.1
B.
0.3
C.
0.5
D.
0.7
【多选题】为了提高服装材料的保暖性,可以采用下列哪些措施;
A.
采用导热系数较高的纤维材料;
B.
加厚服装材料
C.
将纤维制成中空
D.
采用新型的具有自发热特性的纤维
E.
将织物内表面进行磨毛处理
【单选题】合成嘌呤和嘧啶都需要的一种氨基酸是
A.
Asp
B.
Gln
C.
Gly
D.
Asn
【简答题】组织培养的原理是什么并解释 2 、外植体的成苗途径 3 、培养基的组成成分有哪些 4 、培养基配制时加入活性炭的作用是什么,用量一般为多少 5 、试管苗的生态环境以及试管苗的特点是什么
【单选题】已知 (X,Y) 的联合分布律为P(X=1,Y=1)=0.1,P(X=1,Y=2)=0.3,P(X=2,Y=1)=0.4,P(X=2,Y=2)=0.2. 则当 Y=2 时, X 的条件分布函数值 等于 A.0 B.0.3 C.0.5 D.0.6
A.
1
B.
2
C.
3
D.
4
【单选题】合成嘌呤和嘧啶都需要的一种氨基酸是:
A.
Asp
B.
Glu
C.
Gly
D.
Asn
【单选题】已知随机变量ξ的分布列为下图,则ξ最可能出现的值是(  ) -1 0 1 P 0.5 0.3 0.2
A.
0.5
B.
-1
C.
0
D.
1
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