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【判断题】
事件取样法是以特定的行为或事件的发生为取样标准,注重的是特定行为或事件的特征和全过程,一旦所要观察的行为或事件出现,就立即进行观察记录,同时受时间间隔和时段规定的限制。A.
正确
B.
错误
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举一反三
【单选题】关于咽鼓管描述错误的是
A.
咽鼓管连通鼻咽部与鼓室
B.
咽鼓管使鼓室的气压与外界的大气压相等，以保持鼓膜内、外的压力平衡
C.
咽鼓管软骨部向前内开口于咽鼓管咽口，平时处于开放状态
D.
咽鼓管骨部向后外开口于咽鼓管鼓室口
【简答题】Friends in your life are like pillars on your porch. Sometimes they hold you up and sometimes they lean on you. Sometimes it's just enough to know they're standing by. Friendship doubles your joy and ...
【单选题】Our school will hold a sports meet next week. I'd like to take part in the girls' _______ race. [ ]
A.
200-meter
B.
200 meters
C.
200-meters
D.
200 meter
【单选题】咽鼓管描述，错误的是()
A.
咽鼓管连通鼻咽部与鼓室，长3.5～4.0cm
B.
咽鼓管使鼓室的气压与外界的大气压相等，以保持鼓膜内、外的压力平衡
C.
咽鼓管前内侧为软骨部，约占咽鼓管长度的2/3
D.
咽鼓管后外侧的软骨部，约占咽鼓管长度的2/3
E.
小儿咽鼓管短而宽，接近水平位，故咽部感染可经咽鼓管侵入鼓室
【单选题】I like to hold potlucks at the office and invite volunteers to _________them__________ part of the team.
A.
make...... feel like
B.
make......to feel like
C.
make.......feeling like
D.
make .......felt like
【单选题】成年女性红细胞数的正常参考值为
A.
(3.0-4.5)×1012/L
B.
(4.5-5.8)×1012/L
C.
(3.5-5.0)×1012/L
D.
(4.0-5.5)×1012/L
【单选题】—I like this green coat and could you bring it to me? I want to ________ it. —OK. [ ]
A.
try
B.
hold
C.
learn
D.
ride
【单选题】. If Tim carries on working like that, he’ll _________ sooner or later.
A.
give out
B.
keep out
C.
hold out
D.
wear out
【简答题】I am a person who does not like to wait．I don' t like lines, being put on hold when a phone call, arriving at an appointment to find that my companion will be delayed and of course, I don * t l...
相关题目：
【单选题】成年女性红细胞数的正常参考值为
A.
(3.0-4.5)×1012/L
B.
(4.5-5.8)×1012/L
C.
(3.5-5.0)×1012/L
D.
(4.0-5.5)×1012/L
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