【单选题】If you are given the job of adding hydraulic fluid to a mooring winch, and are not certain as to the type of fluid to use, you should ().
A.
add fluid that is the same color as the fluid in the reservoir
B.
add turbine oil because it is always a good substitute
C.
add any oil that has the same viscosity as the hydraulic fluid
D.
check the winch manufacturers instruction book
【简答题】基因矫正(gene correction)
【单选题】The pressure at point in a fluid is the same in all directions only when the fluid is :
【单选题】近年来,我国中小学音乐课程在许多地区还是没有受到足够的重视,教材内容不能与时俱进,一些音乐教师只注重技能培养而忽略了音乐教育的主旨首先应当是“树德立志”。在教授学生一部音乐作品之前,教师首先应该理解其中所表现的道德思想,然后以多样化的形式对学生的身心进行正面教育。作为音乐教师当以此为己任,使孩子们真正热爱音乐,在他们的心灵中种下一颗真、善、美的健康种子。这段文字意在强调( )。
【判断题】The main principle for error correction is that self correction is the best.()
【判断题】以反应物反应量计算的反应速率为负值,而以生成物生成量计算的反应速率为正值。
【单选题】What is interstitial fluid (IF)?
A.
The liquid part of blood
B.
Fluid in the space around cells
C.
Fluid found inside lymphatic vessels
D.
Sticky fluid on respiratory mucosa
【单选题】Incompressible fluid means ( ).
D.
Ignore the changes of density