已知r1：if e1 then (200，1)h 。r2：if e2 then (30，1)h 。证据e1和e2必然发生，并且p(h)=0.03，则o(h)=()。
图中输出x的逻辑表达式为
公共物品是指具有非竞争性或非排他性特征的产品。()
某无黏性土坡坡角β=24°，内摩擦角φ=36°，则稳定安全系数为( )
土的e-p曲线愈平缓，说明（ ）
which of the following correctly identifies gender and age, according to associated press (ap) style?
土力学的创始人是：
which of the following reasoning process helps to narrow down the story ideas?
when conducting personal interviews, start with your key questions.
the subject for a general profile often is a newaker.
磁粉检测法的局限性不包括
what does the doctrine --- start “in medias res,”--- mean as far as lead writing is concerned?
边际收益、边际技术、边际产量呈现共同的最终递减的规律。()
when designing a survey, you should use abbreviations to save space.
for a month with a specific date, abbreviate all but march, april, may, june, july.
2. knowing __________________is more important than knowing what exactly the last sentence would be.
货币政策的政策工具是控制货币供给量。()
while declarative knowledge can facilitate the development of procedural knowledge, it is not a necessary and sufficient condition for the development of such knowledge.
国际贸易惯例已得到各国的公认，因此，它对于买卖合同中的当事人都具有普遍的法律约束力。()
9. according to the process approaches to writing, what are the steps of writing?
michael ______ into the sky to mean it's getting late.
4. which of the following statement is false?
1.speaking is considered as a productive skill and only involves producing information.
产业按照生产结构分类，可以分为劳动密集型产业和资本密集型产业。（ ）
teachers should develop their own preferred classroom practices based on what works best for them in their own particular teaching situations and learners.
2. the primary focus in the reading class should be on getting meaning from print rather than distracting attention to each word.
coursebooks must cover the development of all language skills.
the one unknown word in fifty is something that can be learned through
可逆波的特点是（ ）。
简述柳宗元《封建论》一文的主要内容。
支座位移作用下，结构类型都属于有侧移结构。
technique is an overall plan for systematic presentation of language based on a selected approach.