some people become (4) in winter, when the days are dark and most people spend less time in the open air.
not only in peak performance but also in (20) between parent and child.
this lighting has also been used to treat patients (7) from jet-lag, to improve learning in school-children in russia and america,
part i listening to a song directions: listen and fill in the blanks with the missing information. although (1) __________ has always been a friend of mine.
我某公司与外商签订一份cif出口合同,以l/c为凯时尊龙登录入口的支付方式。国外银行开来的信用证中规定:“latest shipment 31st, may, l/c validity till 10th, june.”我方加紧备货出运,于5月21日取得大副收据,并换回正本已装船清洁提单,我方应不迟于( )向银行提交单据。
系统的输出信号对控制作用的影响
for instance: l the (4) __________ __________ per day, per week.
the condition can be (6) by exposing patients to special lights, known as full-spectrum lights.
the following pairs of sentences are exactly the same except for one word. you will hear either sentence (a) or (b). choose the one you hear.
in this section, you are going to listen to hear 10 sentences. please listen carefully and decide which of the sentences in the three choices is closest in meaning to the one you hear.
choose from the following groups of words the one you hear. each of the words will be read once only.
the (6) __________ __________, including the accepted styles of attire, etc.