please listen to the following ted talk and answer the questions followed. (2分17秒-3分08秒） the speaker worked with other scientists to yze earth climate observations. in 1981,they published an article in science magazine concluding that
微课主要特点的是
please listen to the following ted talk and answer the questions followed. (1分55秒-2分17秒） british physicist john tyndall, in the 1850's, made laboratory measurements of the infrared radiation, which is heat. and he showed that gasses such as co2___________ , thus acting like a blanket warming earth's surface.
三相异步电动机的正反转控制关键是改变（ ）。
位能性负载其负载转矩的方向始终不变。（ ）
critical thinking means black & while thinking mode.
attention to exports outweighs that to imports in america.
chinese idioms are four-character in structure and usually have their sources.
it is said that there was no need for people to lock doors at night and that items left on the road remained untouched by others during the tang dynasty.
guan yu was honored as “martial sage”, enjoying the equal status with the “civil sage”, confucius?
and the timing is especially favorable when the u.s. exporters can use the extra support of globalization.
()是克服自卑的良好手段。
if you plan to collect sensitive from your customers, you should use security systems like ssl.
the old cow in the story was originally taurus star in the heaven.
fu xi and nvwa were credited with creating the eight trigrams, which formed the basis for the philosophy of the book of changes.
“dessert junkies” are those people with yearning for low-fat frozen yogurt and low-fat ice cream.
many apps can streamline and make your travels easier as well as save you money on flights and hotels. here the underlined word "streamline" means _________.
幸福是一种主观的感受。()
e-commerce has witnessed a growth all over the world these years.