9．China has witnessed a digital transformation which has ________ through cloud computing, edge devices and big data. A．come about C．gone through
B．faded away D．broken out
解析：选A 句意：中国已经经历了数字化的转变，这种转变已经通过云计算、边缘设备和大数据实现了。根据句意可知，come about“发生，产生，实现”符合语境。fade away“逐渐减弱，逐渐消失”； go through“通过”； break out“(不愉快之事)爆发”。 10．She bravely ________ the ballet performance and earned wide praise from the audience even though she was in a lot of pain. A．gave in to C．dropped out of
B．stood up for D．went through with
解析：选D 句意：她虽然疼痛万分，但还是坚强地完成了芭蕾舞表演并赢得了观众的广泛赞扬。根据句意可知，go through with“完成(或做完)艰难(或令人不快)的事”符合语境。give in to“向……投降，屈服于……”；stand up for“支持，维护”；drop out of“不再参加，退出”。
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