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【单选题】
凝血酶原时间（PT）是（）。A.
观察血液凝固所需要的时间即凝血酶原时间
B.
观察血清凝固所需要的时间即凝血酶原时间
C.
观察血细胞凝固所需要的时间即凝血酶原时间
D.
观察血小板凝固所需要的时间即凝血酶原时间
E.
观察血浆凝固所需要的时间即凝血酶原时间
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【多选题】In general, for Q-Learning to converge to the optimal Q-values...
A.
It is necessary that every state-action pair is visited infinitely often.
B.
It is necessary that the learning rate α (weight given to new samples) is decreased to 0 over time.
C.
It is necessary that the discount γ is less than 0.5.
D.
It is necessary that actions get chosen according to .
【简答题】选择与下列各题中画线部分意思相同或相近的选项。 1. Marica called him three times yesterday,but nobody answered. A. visited B. told C. phoned 2. My cousin gave up the chance of working abroad and returned to his hometown. A. ...
【单选题】What We Do 我们做的事情 The Humour Foundation is a national charity established in 1997 to promote the health benefits of humour. Clown Doctors are the core project, and children are the focus. Clown Doctor...
B.
to cure clowns of disease
C.
to employ clowns as baby sitters
D.
to take advantage of humour in treating patients
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【单选题】Part A Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D . Mark your answers on ANSWER SHEET 1. UN Secretary-General Kofi Annan visited the troub...
A.
visited the troubled Darfur region of eastern Sudan
B.
spoke with tribal and women leaders in a camp called Zam-Zam
C.
went to a camp just 30 minutes away from the capital
D.
flew to Chad's capital, Janjaweed, for more discussions on the Darfur crisis
【简答题】网络营销产品的价格特征主要包括A. 高价位 B. 透明化 C. 消费者主导 D. 低价位
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