单选题 Which of the following statements is NOT true according to the first two paragraphs of the passage?

A、 Kites have been found to be a useful tool in research on air conditions
B、 Balloons and aircraft are traditional tools in research on air conditions
C、 C .The kites can now fly up to 10 kilometers high
D、 The kites are expected to fly higher and do more researches in the near future

【正确答案】 C

【答案解析】[考核题型] 细节题和辨析题
[解析] 文章在第二段第三句提到"within two years...10 kilo-meters high”意为“该研究小组期望两年内能把这种风筝放飞到1万米高空”，可见这种想法还未实现。因此选C，其它A、 B、D项分别在第一、二段中找出。