9. 船舶柴油機的制動功率是指 (A) 氣缸中燃氣對活塞所作的功率 (B) 活塞對曲軸所作的功率 (C) 活塞對氣缸磨擦所作的功率 (D) 柴油機對外輸出的實際功率

8. Which of the following statements is false? (A) An orbital can accommodate at most two electrons. (B) The electron density at a point is proportional to ψ2 at that point. (C) The spin quantum number of an electron must be either + . (D) A 2p orbital is more penetrating than a 2s; i.(E), it has a higher electron density near the nucleus and inside the charge cloud of a 1s orbital.