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【多选题】
(多选)内皮细胞具有防止心血管内血液凝固的功能是因为 ()A.
它是一个单细胞屏障
B.
分泌凝血酶调节蛋白
C.
合成组织型纤溶酶原活化因子
D.
分泌ADP酶
E.
合成蛋白S
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皮皮学刷刷变学霸
举一反三
【单选题】A(n) ______ is a destructive program that fills a computer system with self-replicating information，clogging the system so that its operations are slowed or stopped．
A.
worm
B.
macro
C.
CIH
D.
Trojan
【简答题】Passage Two Questions 1 to 5 are based on the following passage. It’s an annual argument. Do we or do we not go on holiday? My partner says no because the boiler could go, or the roof fall off, and we...
【单选题】含锰量在( )以上的优质碳素结构钢,其牌号是在两位数字的后面标出锰元素的符号,常见的钢号有15Mn、35Mn、50Mn、60Mn、65Mn等。
A.
低
B.
高
C.
好
D.
差
【简答题】9535 Questions 1 to 5 are based on the following passages. It's an annual argument. Do we or do we not go on holiday? My partner says no because the boiler could go, or the roof fall off and we have n...
【简答题】药物剂型对药物作用的影响
【单选题】Education is not an end, but a means to an end. In other words, we do not educate children only for the purpose of educating them our purpose is to prepare them for life. As soon as we realize this fa...
A.
a purpose
B.
a means
C.
fashionable
D.
the first system
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