periods造句
181. We pray for those who are confined to their homes for long periods.
182. For spot and futures returns over five-minute periods, he found evidence that futures returns led spot returns by up to fifteen minutes.
183. During the test periods subjects were instructed not to smoke or eat anything but drank water ad libitum.
184. What about critical periods for the chimps that have been learning sign language?
185. She suffers from periods of deep depression, when she locks herself away and will speak to no one for weeks.
186. Mr F, 35 has an alcohol problem and his wife, 32,[http:///periods.html] has supported him through many difficult periods.
187. During the rainy periods they survive under water in the flooded areas for several months and will withstand a permanently submersed environment.
188. Since accurate data have been kept, there have been no other periods of sharply rising inequality.
189. The company applies its techniques through workshops or residencies over extended periods of time in hospitals, community centres of special schools.
190. Old Rottweilers may need to be let out more frequently to answer the call of nature, but for shorter periods.
191. Each hospital that took patients with contagious diseases established quarantine periods.
192. There are sudden, dramatic leaps in small children's learning, interspersed with long fallow periods when nothing seems to happen.
193. Some creatures indulge but once a year, with long periods of abstinence as they make copies of themselves.
194. First, all overlap periods must allow adequate time for exchange of information between the staff coming to duty and those leaving.
195. For extended periods of a week or more, you must drain down the household plumbing system.
196. The Commission has a permanent staff of 24 and, in addition, employs eight seasonal staff during the summer and autumn periods.
197. Wear comfortable shoes; you may be doing some walking or standing for long periods of time.
198. They are buildings of the Romanesque or Gothic periods and possess strong Byzantine characteristics.
199. During dry periods the water evaporates, and the gypsum sinks to the lake bottom.
200. When periods finally stop, she has reached the change of life menopause.
201. In the 1970s he was detained without charge or trial for five years and tortured and held for long periods in leg-irons.
202. Lab-Plant has introduced a computer-controlled, electronic stirrer which can be programmed to perform a series of functions automatically and for long periods.
203. Two classroom periods per episode are suggested in the main plan.
204. Lateness is strictly monitored over rolling 20-day periods, while unauthorised absence is carried forward over three months.
205. However, many of the general conclusions from these studies are applicable to systems with longer periods.
206. The survey examined bad debt experience, credit periods and credit management compared with three years earlier.
207. Local distress funds continued to be raised in periods and places of acute distress, although they came increasingly under government control.
208. The receipts and payments method is commonly employed for shorter time periods, say up to one month.
209. Vertical dashed lines enclose periods of contemporaneous high lake levels and elevated geothermal activity on rift volcanoes.
210. In this case, they would constitute a pool of labour which can be utilised in boom periods and disregarded in recessions.
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