26. It was ______ that they all went swimming in the river.
A. such a hot weather B. such hot weather
C. so hot weather D. so hot a weather
25. -I came here by taxi and the driver ________ me 50 yuan.
-Really? You ________ by bus.
A. paid; should come B. cost; should have come
C. charged; ought to have come D. spent; ought to come
24. When we were young, every evening my brother and I ___ stay at home waiting for our mother.
A. would B. might C. should D. could
23. _________ Mr. Rowan Atkinson acts as different comic characters , he is more famous around the world _______ Mr. Bean .
A. Because ; for B. Though ; to
C. Although ; as D. Even though ; by
21. ---I’m afraid I must be off now . --- ____________________ .
A. No problem B. Never mind C. Step slowly D. See you soon. 22.-Daddy, can you buy me a new MP3 when you go to Beijing?
-You ______ get one if you are admitted to a key middle school.
A. could B. shall C. may D. can
25.在学校开展的结合实践活动中,某班进行了小制作评比,作品上交时间为5月1日至31日,评委会把同学们上交作品的件数按5天一组分组统计,绘制成频率分布直方图,如图所示,已知从左至右各长方形高的比为2:3:4:6:4:1,第三组的频数为12,请解答下列各题:
(1)本次活动共有多少作品参加评比?
(2)哪组上交的作品中数量最多?有多少件?
(3)经过评比,第四组和第六组分别有10件、2件作品获奖,问这两组哪组获奖率较高?
24.某公司10名销售员,去年完成的销售额情况如下表:
销售额(单位:万元) |
3 |
4 |
5 |
6 |
7 |
8 |
10 |
销售员(单位:人) |
1 |
3 |
2 |
1 |
1 |
1 |
1 |
(1)求销售额的平均数、众数、中位数(单位:万元).
(2)今年公司为调动员工积极性,提高年销售额,准备采取超额有奖的措施,请根据(1)的结果,通过比较合理确定今年每个销售员统一的销售额标准是多少万元?
23.将10盒同一品种的花施用甲、乙两种保花肥,随意分成两组,每组5盆,其花期的记录结果如下(单位:天).
编号 |
1 |
2 |
3 |
4 |
5 |
甲组 |
23 |
25 |
27 |
28 |
22 |
乙组 |
24 |
24 |
27 |
23 |
27 |
(1)施用哪种花肥,使得花的平均花期较长?(2)施用哪种保花肥效果比较可靠?
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