题目内容

氮平衡在体内的3种情况是、和__。

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急性肝炎时，血清中_（酶）活性明显升高；心肌梗死时血清中_（酶）活性明显升高。

嘧啶碱在体内分解代谢的终产物除NH3和CO2外，其中胞嘧啶还产生，胸腺嘧啶产生_____。

phrase：符合；遵照；遵守

Fill in the gaps with words or phrases given in the box. Change the form where necessary. (用所给单词的适当形式填空)hatchsilencebarkflockmigrantgrimsettle overpatchcomplain mysteriousevilspellscores ofbroodtragedyfeed on vegetationcounterpart1. Don't get scared. A ______ dog does not bite.2. The cover story repeats the shopworn (陈旧的) criticism that Microsoft is _ because its second-rate software crushes better programs.3. Our hen is still brooding and no chicken has been _ yet.4. Much of the harvesting on this farm is done by _ workers, who came across the border to make a living in southern California.5. "Hamlet" is one of Shakespeare's great .6. As an interpreter, Mr. Wang was present at the negotiations between our foreign minister and his American , the US Secretary of State.7. He tried to drive home to us that we should listen when the people .8. The financial crisis is affecting industrial production and we need to wake up to the reality.9. On warm days flocks of birds came to the bushes by the roadside and _ the berries.10. These days, "green" roofs, that is, roofs covered with green , are becoming fashionable in this city.11. With dark brown on her face, she looked older than her age.12. ______ visitors come here each day to search for ancient coins.