【单选题】Ben derived a lot of ______ from his boss’s apology. A. comfort B. ease C. gratification D.
【单选题】The students were ______ by his humorous words.
【单选题】We _____ his luggage; his brother carried it himself.
C.
needed to have carried
【单选题】控制系统引入积分作用是为了消除余差,但积分的引入会使系统产生振荡现象。而引入微分作用是为了克服( )对系统的影响。
【单选题】We his luggage; his brother carried it himself.
C.
needed to have carried
【单选题】合同终止以后当事人应当遵循保密和忠实等义务。此种义务的依据是
【单选题】It is desired that his order______ as soon as possible.