设a=2，b=3，c=4，d=5，下列表达式的值是（ ）。 3>2*b Or a=c And bc Or ba+c

某煤样Std含量为0.96﹪，其测量结果为0.98﹪，则此次测量结果的相对误差为（）。

设a=′′a′′，b=′′b′′，c=′′c′′，d=′′d′′，执行语句x=IIf（（ad），′′A′′，′′B′′）后，x的值为（　　）。

Project（71）is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

Project ______is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

● Project（71）is an uncertain event or condition that, if it occurs, has a positive or a negative effect on at least one project objective, such as time, cost, scope, or quality.（71）

 ______ twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.

A declaration made by the Master before a PRC Consul，giving particulars regarding heavy weather or other incidents which may have caused damage to the vessel or cargo，through no fault of the vessel，her officers，or crew is a(n)（）.

It will be a relief over the death of a friend or a relative if the friend or relative dies from ______.

已知Mad为2.00%，Aad为30.00%，Vad为20.00%，求FCad为（）。

某煤样Mad＝1.67%，Aad＝25.83%，求Ad

A mark or place at which a vessel comes under obligatory entry，transit，or escort procedure is know as（）.