英文好的. present perfect continuous tense. 我想不到来造句啊== 谁可以帮我一下//、 have been crying... has been cleaning... have been walking... have been trying... has been doing... 答案 the babies have been crying for two hoursshe has been cleaning since yesterdayi have been wal...
4.How long have you been living in your present flat?(不懂它问什么)5.How long have you been living in Hong Kong?15年 相关知识点: 试题来源: 解析 1.Since 15 years ago. 2.For 3 hours. 3.For 3.years. 4.建议写Since 2 years ago. 5.Since 15 years ago. 分析总结。 15年扫码下载...
1.现在完成时（have done）所以，现在完成时表示的是：处于现在这个时间点，对这个时间点之前发生的一个...
Present continuous Present perfect continuous(have been + ing ) I’m learn ing German How long have you been learning German? ( not ‘how long are you learning German?’ ) David is watch ing T.V. How long has he been watch ing T.V.? He’s been (=he has been) watch ing TV ...
However I liked this question a lot because I remember having it myself when I was in high school. And when I was teaching combinatorics for the first time. And randomly every so often since. I absolutely am certain I have thought about this before, and I also am certain I have no me...
We show by counterexample that policy-gradient algorithms have no guarantees of even local convergence to Nash equilibria in continuous action and state space multi-agent settings. To do so, we analyze gradient-play in N-player general-sum linear quadratic games, a classic game setting which is ...
Median CD4 count was higher among MSM who had UAI compared to those who did not report UAI, although no significance was observed at 10% (P = 0.116). Roughly half of the participants had an undetectable HIV viral load; this was not associated to a higher likelihood of having UAI (...
but i started walking but i still cherish but i think it was he but i waltzing was no but i was dr drake ra but im happy being a but iam willing to go but ill know where se but im a creep im a w but im a creepim a we but im all alone at l but im always thinkin but ...
There were no differences in demographic (i.e. age, race, education or employment) and behavioral (i.e. substance and alcohol use) between those with and without missing data for these variables. The final analysis sample was 518 GBMSM. Multivariable modeling considers 3 continuous outcomes: (...