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【单选题】
2017U1-107女,67岁。间断咳嗽、咳痰15年,心悸、气短伴双下肢水肿3天。心电图示胸前导联重度顺转位,V1导联呈Rs型,V5R/S<11RV1+SV5=1.5mV。该患者最可能的诊断是A.
心包积液
B.
扩张型心肌病
C.
风湿性心脏瓣膜病
D.
慢性肺源性心脏病
E.
冠心病，心肌梗死
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【简答题】生产餐饮产品的原料大多是鲜货原料，极容易[填空(1)]。
【单选题】If a 1 kg mass is dropped to the floor from a height of 5 m, what is the approximate velocity once it reaches the ground?
A.
10 m/s
B.
5 m/s
C.
1 m/s
D.
100 m/s
【单选题】Particle 1 of mass m 1 = 6.0kg, particle 2 and 3 of mass m 2 = m 3 = 4.0kg, and distance a = 2.0cm. What is the net gravitational force (its magnitude and direction) on particle 1 due to the other par...
A.
F 1,net = 5.1x10 -6 N, θ = 104 o
B.
F 1,net = 4.1x10 -6 N, θ = 104 o
C.
F 1,net = 4.1x10 -6 N, θ = 204 o
【单选题】配制2％盐酸普鲁卡因滴眼剂1000ml，为使其等渗，需加氯化钠的量是(已知1％盐酸普鲁卡因溶液的冰点降低为0．115，1％氯化钠溶液的冰点降低为0．58)
A.
3．59
B.
4．69
C.
5．09
D.
8．19
E.
9．39
【单选题】What does Dr. Fred Whipple mean when he says this?
A.
Halley's Comet is a mass of ice covered with dust.
B.
Halley's Comet is filled with dust.
C.
Halley's Comet is a mixture of ice and dust.
D.
The structure of comet is equal to that of any other stars.
【简答题】生产餐饮产品的原料大多是鲜货原料，极容易（）。
【单选题】配制2%盐酸普鲁卡因溶液1000ml,需加( )g氯化钠使成等渗溶液(1%盐酸普鲁卡因的冰点降低值为0.12°C)
A.
8.4
B.
4.8
C.
6.5
D.
2.4
【单选题】According to Dr. Mass, the Cornel psychologist, which of the following is NOT correct?
A.
People should take napping as a daily activity.
B.
Naps strengthen the ability to pay close attention to details.
C.
We should sleep for eight hours during the night.
D.
It's much helpful to nap for twenty minutes during the day than to sleep twenty minutes more than usual during the night.
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