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【单选题】
We know that this is true, but ______ we recognize this truth only in our backward glance.A.
all too often
B.
too often
C.
all too late
D.
too late
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反馈参考答案：
举一反三
【单选题】不属于近端小管的功能是
A.
重吸收滤液中的葡萄糖、氨基酸等
B.
重吸收滤液中的水
C.
重吸收滤液中Na+，排出K+
D.
排泄H+、氨、肌酐、马尿酸等
E.
转运和排出血液中的青霉素等药物
【单选题】Two years ___ he began to write another story-book. [ ]
A.
after
B.
later
C.
in
D.
late
【简答题】The second book was ________ by August 1952, but two years later, the end was still nowhere in sight. A) completed B) to have completed C) to complete D) to have been completed
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