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【多选题】
生物制药的制备过程与小分子药有明显区别。可根据生物药混合物中的不同组分分配率差别,外加一定作用力,使多组分分配与不同区域而达到分离目的。常用的分离纯化的主要原理有:根据分子性状和大小不同、根据分子电离性质、根据分子极性大小和溶解度不同等。其中根据物质吸附性质不同的分离方法有A.
选择性吸附
B.
吸附层析
C.
亲和层析
D.
膜分离
E.
凝胶过滤
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【单选题】In early 2004 eight tiny sensors were dropped from a plane near a military base in California. After hit ting the ground, the sensors—also known as smart dust sensors organized themselves into a netwo...
A.
giving troops their protective gear
B.
organizing themselves into a computer network
C.
detecting the movement of military vehicles nearby
D.
operating in remote and dangerous War zones
【单选题】__________sensors are able to detect targets autonomously
A.
Position and movement
B.
Non-cooperative
C.
Exteroceptive sensors
D.
ex-proprioceptive ones (sensors)
【简答题】阅读理解。 Head above Water TUVALU, a tiny country in the Pacific Ocean, has asked for help as it will be swallowed up by the sea. Storms and huge waves are a constant threat and none of Tuvalu's nine litt...
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