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【单选题】
下列关于核酸杂交的说法正确的是_______.
A.
反向点杂交将探针固定在膜上,将待测的DNA样本进行标记。
B.
Northern blot检测的是DNA样本。
C.
原位杂交的过程大致为提取核酸样品、杂交、检测杂交信号。
D.
固相杂交用尽可能低的探针浓度。
E.
一般来说,杂交反应的体积越大越好。
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【单选题】药物的吸收描述错误的是( )
A.
眼部给药要注意药物的停留时间
B.
眼部给药要尽量避免药物通过泪管等其他途径消除
C.
舌下给药是为了让药物快速被唾液溶解而利于吞咽
D.
人体各部位角质层的厚度不同,所以全身作用的贴剂应该选择便于给药且药物透过较为容易的部位
【单选题】What is the international direct-printing service for the promulgation of maritime safety information (MSI) in the English language pertaining to coastal waters up to about 400 miles (644 km) offshore...
A.
NAVARES broadcasts.
B.
National Meteorological Centre weather broadcasts.
C.
HF facsimile.
D.
NAVTEX
【单选题】The coast of the state of Maine is one of the most irregular in the world. A straight line running from the southernmost coastal city to the north- ernmost coastal city would measure about 225 miles. ...
A.
The wealthy residents of Mt. Desert Island selfishly kept it to themselves.
B.
Acadia National Park is one of the smallest of the national parks.
C.
On Mt. Desert Island, there is great tension between the year-round residents and the summer tourists.
D.
Due to its location and environment, Mt. Desert Island supports an incredibly diverse animal and plant life.
【单选题】以下关于循环语句的描述错误的是( )。
A.
循环次数必须事先确定
B.
循环体可以执行一次,也可以执行多次,也可以不执行
C.
循环体可以是一个语句,也可以是多个语句,也可以为空
D.
循环体可以放在条件框的下方,也可以放在条件框的上方
【判断题】新奥法隧道施工中,当隧道埋设深度大于基坑3倍宽度时,地表沉降可以不监测。
A.
正确
B.
错误
【单选题】The coast of the state of Maine is one of the most irregular in the world. A straight line running from the southernmost coastal city to the north- ernmost coastal city would measure about 225 miles. ...
A.
Ice-age glacial activity The Islands of Casco Bay Formation of Cadillac Mountain Summer residents of Mt. Desert Island
B.
Formation of a drowned coastline The topography of Mt. Desert Island The environment of Mt. Desert Island Tourist attractions on Mt. Desert Island
C.
Mapping the Maine coastline The arts community at Bar Harbor History of the National Park System Climbing Cadillac Mountain
D.
The effect of glaciers on small islands Stone-age dwellers on Mt. Desert Island The importance of biodiversity Hiking in Acadia National Park
【单选题】The coast of the state of Maine is one of the most irregular in the world. A straight line running from the southernmost coastal city to the north- ernmost coastal city would measure about 225 miles. ...
A.
glaciers forcing a mountain range into the sea.
B.
Maine’s location between the temperate and sub-Arctic zones.
C.
the irregularity of the Maine coast.
D.
the need for summer communities for wealthy tourists and artists.
【判断题】鼓励急性肾盂肾炎老人每日饮水量>2000ml,督促每小时排尿1次,达到冲洗膀胱、加速细菌、毒素和炎性分泌物的排除,减轻尿里刺激症状的目的。
A.
正确
B.
错误
【单选题】为了延长药物作用时间可将药物制成的是
A.
糖衣片
B.
肠溶衣片
C.
泡腾片
D.
舌下片
E.
控缓释片
【单选题】The coast of the state of Maine is one of the most irregular in the world. A straight line running from the southernmost coastal city to the north- ernmost coastal city would measure about 225 miles. ...
A.
2,500 miles long.
B.
3,500 miles long.
C.
225 miles long.
D.
235 miles long.
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