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【多选题】
电子托运单订舱是实现未来我国“无纸化贸易运输”项目的一个发展趋势，电子订舱的优点主要在于( )。A.
订舱速度快
B.
形式简单
C.
电子托运单可与纸质托运单共存
D.
差错率低
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【单选题】Cell phones are now widely used, _______possible for us to talk to anyone from almost anywhere.
A.
make it
B.
to make it
C.
making
D.
making it
【简答题】New York State has passed the USA’s first state law banning motorists talking on hand-held cell phones. The ban will begin November 1, although drivers caught using hand-held cell phones will be given...
【简答题】患者，女性，36岁。婚后不久出现发热、腰痛、尿频、尿急1周来院就诊。化验结果显示：血白细胞增多，嗜中性粒细胞0.9，尿沉渣检查白细胞满视野／HP。最可能的医疗诊断是A、急性膀胱炎 B、慢性肾炎 C、急性尿道炎 D、急性肾衰竭 E、急性肾盂肾炎 此患者最可能的致病菌是A、肺炎球菌 B、支原体 C、大肠杆菌 D、粪链球菌 E、铜绿假单胞菌 该患者最重要的护理措施是A、多饮水 B、避免过度劳累 C、清淡...
【简答题】Smoking was banned on almost all ______ in 198
【多选题】In almost all adult tissues, cells are continually dying and being replaced; throughout this hurly-burly of cell replacement and tissue renewal, the organization of the tissue must be preserved due to...
A.
Cell communication: each type of specialized cell continually monitors its environment for signals from other cells and adjusts its behavior accordingly; the proliferation and even the survival of most vertebrate cells depends on such social signals. This communication ensures that new cells are produced and survive only when and where they are required.
B.
Selective cell adhesion: because different cell types have different cadherins and other cell adhesion molecules in their plasma membrane, they tend to stick selectively, by homophilic binding, to other cells of the same type. They may also form selective attachments to certain other cell types and to specific extracellular matrix components. The selectivity of these cell adhesions keeps cells in their proper positions.
C.
Cell memory: specialized patterns of gene expression, evoked by signals that acted during embryonic development, are afterward stably maintained, so that cells autonomously preserve their distinctive character and pass it on to their progeny. A fibroblast divides to produce more fibroblasts, an endothelial cell divides to produce more endothelial cells, and so on.
D.
all the above.
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