直线相关分析中,若总体相关系数p>0,则从该总体中抽取的样本相关系数()。
A.大于0
B.小于0
C.等于0
D.可能大于0,小于0或等于0
E.等于1
参考答案:D
根据对话语境,在空白处填写恰当的句子补全对话。
A: Hao Tong, you’re great. You got an A in English last term. 1._____?
B: I learn English by joining an English language club.
A: Sounds good. Then how can you get the pronunciation right?
B: 2._____.
A: Well, I will try to do more listening practice, too. 3._____?
B: Oh, yes. I take lots of grammar notes.
A: 4._____.
B: Well, you should find a pen pal to practice writing with.
A: I can’t do well in listening. I can’t understand people who speak too fast.
B: Well, 5._____, not every word.
A: OK. I’ll try. Thanks.
患儿,女,8岁。因摔伤致右肘肿痛、活动受限2小时就诊。X线片示:肱骨远端骨骺连同尺、桡骨一并向后、内侧移位,外髁骨骺与桡骨近端对位、对线关系正常
目前诊断考虑是()
A.肱骨髁上骨折
B.肱骨下段骨折
C.肱骨外侧髁骨折
D.肱骨远端骨骺分离
E.肘关节后脱位