Injured as he was, he still decided to finish his journey around the country _______ gave up.

We were swimming in the lake _______ suddenly it began to rain heavily

been puzzled over the problem for over an hourwithout any result, ____ all at once the solution flashed across my mind.

How will you deal with these papers, Ann?—I will leave them to takes over the job.

依次填入下面一段文字横线处的语句，衔接最恰当的一组是中国茶有红、绿、青、黄、白、黑六大类2000多种，外形千姿百态，香气各具特点，滋味风格迥异，效能各不相同。 。 ，它是茶叶品质的综合表现。 ，它是茶叶品质的综合反映。 。 。①香气高、滋味醇、叶底匀、汤色清，是好茶，反之则劣②所谓外形是指干茶的芽叶比例、有无锋苗以及老嫩、松紧、整碎、净杂、光润、鲜暗等的程度③条索紧、嫩度好、锋苗多、色泽润，是好茶，反之则劣④所谓内质是指香气的高低、纯杂二长短，滋味的浓淡、强弱、鲜淳、苦涩，叶底的嫩度、色泽、净匀度，汤色的鲜活、明亮程度⑤不管差别多大，选择茶叶的方法是相同的，都离不开看外形、评内质