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【单选题】
功率放大电路的效率是（）。A.
输入功率与输出功率之比
B.
输出功率与输入功率之比
C.
输出功率与电源消耗功率之比
D.
电源消耗功率与输出功率之比
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【单选题】When required by their teacher to take notes in classes, some students only do so ______.
A.
willingly
B.
impatiently
C.
cautiously
D.
reluctantly
【简答题】鼓励幼儿独立进餐,不催促他们进餐,提醒他们尽量在用餐时间内把饭菜吃完。其中中大班不少于______,小班不少于______。
【单选题】中式早餐接待服务的准备工作包括( )。
A.
环境准备、餐具准备、个人卫生准备
B.
环境准备，餐具、佐料和服务用品准备，当日菜品准备，个人卫生准备
C.
环境准备、服务用品准备、菜品准备、个人卫生准备
D.
环境准备、用品准备、菜品准备、个人卫生准备
【单选题】Students at a certain university have complained that some of their professors do not provide copies of their lecture notes at every class. The student body president has argued that, in order to furt...
A.
At the most popular classes, there are often insufficient quantities of lecture note copies to accommodate all of the students.
B.
Students have acknowledged that if the lecture notes are posted online, they will be less likely to go to class.
C.
Professors complain that the university does not provide sufficient copying funds, so that professors often have to pay for copies of lecture notes out of their own pockets.
D.
Over 80 percent of students have access to the Internet in their dorm rooms, and all students have 24-hour access to the Internet at the computer lab.
E.
The university has publicly stated that one of the educational goals of the university is to help all students gain competency with the Internet.
【简答题】鼓励幼儿独立进餐,不催促他们进餐,提醒他们尽量在用餐时间内把饭菜吃完。其中中大班不少于______,小班不少于______。
【简答题】To Chiaki Mukai, her next dream may be ______.
【单选题】The writer' s experiment shows that downshifting ______.
A.
enables her to realize her dream
B.
helps her mold a new philosophy of life
C.
prompts her to abandon her high social status
D.
leads her to accept the doctrine of She magazine
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