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【单选题】
A pair of synthetic gene circuits that count events — a long-stated goal for circuit engineers — was reported in _______. For one of these counter circuits, recombinase-mediated DNA rearrangement was used to create permanent memory of an event, and a similar strategy was later used to engineer a full set of recombinase-based logic gates.A.
2004
B.
2006
C.
2009
D.
2012
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【单选题】Deep slow breathing(Kussmaul’s respiration) is typical of ( ).
A.
alkalosis
B.
acidosis
C.
hypernatremia
D.
hyponatremia
【多选题】相对新建商品房市场营销，存量房市场营销的特点有()。
A.
交易价格由出卖人主导
B.
一般采用直接销售的形式
C.
交易标的多为已交易过的房屋
D.
多采用房地产经纪机构代理销售
E.
多使用成本低、受众面广的广告
【单选题】Mr Wang is a 47 years old man, who was Admitted to hospital for mistakenly eating a large number of barbiturates. During hospitalization, the patient's breathing changes periodically: the respiration ...
A.
Biots breathing.
B.
Cheyne-Stokes breathing.
C.
Signing breath.
D.
Shallow breathing.
E.
Kussmaul breathing
【单选题】Good breathing is slow, ____ and deep.
A.
rational
B.
cosmic
C.
symmetrical
D.
rhythmic
【单选题】Good breathing is slow, __________ and deep .
A.
rhythmical
B.
rhythm
C.
rhyme
D.
rhymed
【单选题】(2017年·单选题)对外贸易中,经双方同意作为交货品质依据的样品称为标准样,以 下关于“标准样品”的说法正确的是
A.
可由买方提供样品,经卖方复制复样,再寄交买方确认
B.
申请检验检疫机构签封,一般一式两份,经审核后,买卖双方各执一份
C.
是从一批商品中抽取出来的品质最好的少量实物
D.
出口商品的品质不得低于标准样品
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