根氧化力 oxidizing force of root

A . It is imperative that the securing of cargo on flats and trailers and in containers be adequate for both road and sea motions B . The movements experienced by road borne cargo differ significantly from the roll and sway movements of a ship at sea C . It is necessary for adequate number and strength of securing points on the vehicles themselves in order that lashings may be properly and safely utilized. D . All the above

A . centrifugal pumps B . jet pumps C . propeller pumps D . reciprocating pum

A .  Garbage collection cannot be forced. B .  Call System.gc（）. C .  Call System.gc（）， passing in a reference to the object to be garbage collected. D .  Call Runtime.gc（）. E .  Set all references to the object to new values（null， for example）.

A . 航向线性作动筒 B . 周期变距杆 C . 脚蹬 D . 航向操纵杆

A . increases with latitude，being maximum at the geographic poles B . decreases with latitude，being maximum at the geographic equator C . is greatest when a vessel is near the Earth's magnetic equator D . remains the same at all latitude

A . stress B . strain C . shear strength D . ultimate tensile strength

A . CMOS是一个小型的RAM，功耗低，在外界电源切断时，由主板上的电池供电 B . CMOS中保存系统正常运行所需的参数，如果它们有误，计算机不能正常工作 C . CMOS中的数据用户不能重新设置 D . CMOS中的数据可以重新设置，但需要使用系统提供的专用程序SETUP

A . Start ventilation，lower the ramp，notify engine room B . Lower the ramp，start ventilation，notify engine room C . Notify engine room，lower the ramp，start ventilation D . Start ventilation，notify engine room，lower the ram

A . simple and lightweight equipment B . low labor intensive equipment C . specially designed equipment to avoid vehicle damage D . All of the above

A . many thousand times B . between times C . one time D . at time

A . many thousand times larger than B . the same as C . many thousand times smaller D . none of the above

A . time B . lever arm C . displacement D . angle of inclinatio

A . solid packing B . rapid loading and discharge C . vessel loaded full and down to her marks D . palletized cargo

A . R的相对原子质量为12 B . N的相对分子质量是28 C . 参加反应的RO 质量为12 D . 2.4gM与5gRO 反应生成7.4gN

(a) I₂(b) NaOCl (c) K₂Cr₂O₇(d) KMnO₄

是 否