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【多选题】
女性,88岁,走路时无意间摔倒,右侧胯部持续疼痛不能缓解,来医院行CT检查,提示右侧股骨颈骨折,行PET/CT检查,下列说法正确的是A.
假关节间隙内代谢增高，断端无放射性浓聚，提示预后不良
B.
患者年龄较大，可先保守治疗缓解疼痛，之后考虑行人工关节置换术
C.
断端硬化，提示预后不良
D.
患者因年龄大于65岁，可直接行人工关节置换术
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【单选题】甲药比乙药安全的依据是
A.
甲药的LD 50 比乙药大
B.
甲药的LD 50 比乙药小
C.
甲药的LD 50 /ED 50 比乙药大
D.
甲药的LD 50 /ED 50 比乙药小
E.
以上均不是
【单选题】完成下列各选项 Expressing gratitude is an important form. of good manners． Nowadays more and more people in China have found it s high time to 11 a thankful heart for the young． Everyone likes to get praised...
A.
have
B.
cultivate
C.
share
D.
like
【简答题】More -agers smoke today than at any time since the 19 15 s, a federal study shows. Overall, 35% of children 1 grades 9-12 smoke cigarettes, a greater 2 than the 25% of s who smoke. 3 it is il...
【单选题】The average time between two high waters is 12 hours and 25 minutes because this is the time it takes for ____.
A.
The sun to be at the opposite side of the moon
B.
The moon to be at the opposite side of the earth
C.
The moon to be at its apogee
D.
The sun and the moon to be on the same side
【简答题】Dịch các câu sau đây ra tiếng Hán. (1) Màu xanh mướt của tre có lúc xòa mát khoảng trời trên đầu. Trên đường làng, lúc gió nhiều, những chiếc lá tre rụng xuống quấn chân người đi. (2) Cộng đồng xúm và...
【单选题】The average time between two high waters is 12 hours and 25 minutes because this is the time it takes for (A).
A.
the moon to be at the opposite side of the earth
B.
the sun and the moon to be on the same side
C.
the moon to be at its apogee( 远地点 )
D.
the sun to be at the opposite side of the moon
【单选题】The average time between two high waters is 12 hours and 25 minutes because this is the time it takes for ___ .
A.
the Sun to be at the opposite side of the Moon
B.
the Moon to be at the opposite side of the Earth
C.
the Moon to be at its apogee
D.
the Sun and the Moon to be on the same side
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