以下哪一项不是战略评价应遵循的原则？（） ["A.风险原则","B.价值原则","C.择优原则","D.公益原则"]
Flexible hose under pressure in a hydraulic system will （）. ["tend to twist about its long axis","expand in length and in diameter","contract in length and expand in diameter","flex at right angles to the applied pressure"]
探望病人时，得体的举动是（）。 ["和病人谈论单位的人事纠纷","用乐观、有分寸的话语鼓励病人","当着病人的面和病人的家属窃窃私语","向病人提供道听途说的偏方"]
Shift键的作用是（）。 ["输入上档字符","锁定大写","删除字符","锁定数字功能"]
An air compressor can be unloaded at start-up by （）. ["holding the discharge valve open","relieving the intercooler pressure to the atmosphere","using an enlarged, permanently opened clearance expansion space","a pre-charged accumulator"]
如何利用水份亏缺的生理变化应用于农业生产，以达到节水高产双赢的目的？
