to keep the boats covered at all times
not to leave steel or iron tools lying in or near these boats
to keep an electric charge on the hull at all times
to rinse these boats regularly with salt water
第1题：
The material used extensively as electrolytic protection around bronze propellers is ______.
A.Brass
B.Copper
C.Lead
D.Zinc
第2题：
Which statement concerning sweat damage in containers is TRUE ________．
A.Sweat damage in containers is unusual due to the small enclosed volume of air
B.In general，containerized hygroscopic cargoes are the only ones subject to sweat damage
C.Containers should be ventilated，dehumidified，or the contents physically protected against sweat damage
D.Sweat damage is not a problem except in insulated and refrigerated containers
第3题：
"Vulnerable to" in Line 3 probably means ______.
A．subject to
B．easy to be attacked by
C．of great volume
D．likely to damage
第4题：
您要写下面的名为 CustomException的自定义异常类public class CustomException : ApplicationException { public static int COR_E_ARGUMENT = unchecked((int)0x80070057); public CustomException(string msg) : base(msg) { HResult = COR_E_ARGUMENT; }}您需要编写一段代码,这段代码要使用ustomException 类,并且要迅速返回控制权给COM 调用方法。 您应该使用哪个代码？（）
第5题：
慢性肺源性心脏病(chronic cor pulmonale)
第6题：
A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain ______.
A.is more flexible and has the ability to absorb shock because of its weight
B.is less subject to wear and damage from abrasion
C.requires little maintenance
D.All of the above
第7题：
绒毛心（cor villosum）
第8题：
If the Charterer nominates an unsafe port and the ship is damaged through going there， ________ will be liable for the damage， subject to that the master acts reasonably in going there．
A.he
B.her
C.the owner
D.the shipper
第9题：
Which of the following may be the disadvantages of road transport？（）
第10题：
COR电报正确的是（）。