单选题 In the field of biotechnology China is thought to ______.

A、 have been making an utmost effort learning from the West
B、 have become a country among the advanced
C、 have been able to rival the United States and Europe
D、 have launched a biotechnological revolution

【正确答案】 A

【答案解析】从第二段第一句China is fast applying the latest life-science techniques learned from the West…可知A(一直在努力学习西方)是正确选项。B(已成为发达国家中的一员)、C(已经能与美国和欧洲竞争)、D(已经开始了一场生物技术革命)都不正确。