A survey on “What apps students use to learn English” was made in Class 4, Grade 9 in Xinhua Middle School. There are 100 students in this class. One fifth of them don’t learn English by app. Then according to the form below, among the students who learn English by app, __________ students use Scallops Words.
| BaiCiZhan （百词斩） | Scallops Words （扇贝单词） | Youdao Dictionary （有道词典） | PowerWord （金山词霸） |
| 50% | ? | 10% | 15% |
| A．40 | B．20 | C．12 |
更新时间：2020-05-21 13:16:54
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【推荐1】We have made a survey among 1,000 students from a middle school about their favorite food. ________ students like fruit according to the form.
Kind of food | Chocolate | Banana | Cookie | Apple |
Percentage of the students | 20％ | 30％ | 150 | ? |
| A．350 | B．650 | C．800 |
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【推荐2】—What's three and five?
—It's ______ .
—It's ______ .
| A．six | B．seven | C．eight |
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【推荐3】There are 50 students in Class 1. They went to different places on National Day (each student only went to one place）. According to the chart, ________ students went to Qionghai Wetland Park.
| Laushan Mountain | Luoji Mountain | Qionghai Wetland Park | The Moon Lake Park |
| 30% | 40% | ? | 10% |
| A．fifteen | B．twenty | C．five | D．ten |
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