Sasaki re-ran the experiment while presenting the sleeping participants with a mix of regularly timed of the same tone and irregular beeps of a different tone during the night.
2017年12月四級真題（第一套）閱讀 Section C
英語六級真題
A super attendant of the city's municipal building, Delia Sedona, was responsible for presenting its new security plan to the public.
出自-2012年12月聽力原文
柯林斯高階英漢雙解學習詞典釋義
ADJ
現在的；目前的
You use present to describe things and people that exist now, rather than those that existed in the past or those that may exist in the future.
In grammar, the present tenses of a verb are the ones that are used to talk about things that happen regularly or situations that exist at this time. The simple present tense uses the base form or the 's' form of a verb, as in 'I play tennis twice a week' and 'He works in a bank'.
PHRASE
目前；現在；眼下
A situation that exists at present exists now, although it may change.