对液压舵机系统中的转舵机构、换向阀、油泵、油箱及油路系统,()都要进行检查。
A.每航次
B.每半年
C.每年
D.每9个月
参考答案:A
对新生仔犬疾病的治疗原则,说法不正确的是()。
A、治疗措施必须及时、得力
B、用药量要足,一般为同种成年犬药量的1/2—1/4
C、仔犬心跳频率高,血液循环迅速,所以一切药物在体内循环急剧,并迅速从体内排出。
D、仔犬抗病力弱,对疾病的耐受力差
In a recent experiment, a high school English teacher interspersed real, commonly used proverbs with several nonsensical proverbial-sounding statements that he had made up. He then asked his students to evaluate all of the statements on the list. In general, the students found the bogus proverbs and the real proverbs to be equally full of wisdom and meaning. The teacher concluded that proverbs attain their status as proverbs more through frequent usage than through their inherent wisdom. Which one of the following, if true, would most effectively challenge the teacher’s conclusion
A.Some proverbs are used more frequently than others.
B.There were more real proverbs than bogus proverbs in the list of statements.
C.There are stylistic differences between proverbial and proverbial-sounding statements.
D.Some students view a statement in one way and other students view the same statement in a very different way.
E.(E) The students selected as evaluators were too inexperienced to judge the wisdom of the statements.