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【单选题】
在心电图上测R-R间期时间间隔为0.75s,则被检者的心率是
A.
70次/min
B.
100次/min
C.
80次/min
D.
65次/min
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举一反三
【单选题】()包括友谊、爱情、归属、信任与接纳的需要。
A.
生存需要
B.
安全需要
C.
社交需要
D.
尊重需要
【简答题】口算: 3 2 +2 2 = 2.25+ 3 4 = 4 7 ÷4 = 8- 4 5 = 0.21× 3 4 +0.21÷4 = 21÷4= 1÷( 1 10 ÷ 1 8 ) = 1 5 ÷5×25 = 5 9 + 1 5 - 5 9 = 1- 11 13 - 2 13 =
【简答题】Section C Directions: In this section, you will hear three passages. At the end of each passage, you will hear three or four questions. Both the passage and the questions will be spoken only once. Aft...
【判断题】我们用肉眼看到的尘土飞扬,就是布朗运动。
A.
正确
B.
错误
【单选题】若设法使1L空气中的氧气全部除去,则余下气体的体积跟以下哪个数值最接近(  )
A.
0.2L
B.
0.21L
C.
0.78L
D.
0.79L
【单选题】My grandfather is as ________ as a young man and hates sitting around doing nothing all day.
A.
nervous
B.
energetic
C.
anxious
D.
creative
【简答题】根据语境,填入适当的词语或句子,补全对话。 A: Hello, Mr Zhang! B: Hello, Bob! You look worried and nervous. _    1 ? A: I have a big problem. _ 2 . B: What's your problem? A:  You know I love basketball best.  But since I...
【简答题】听下面一段材料,回答第1至第3题。 1. How did the man feel when he met the woman? [     ] A. Upset. B. Nervous. C. Surprised. 2. What is the man? [     ] A. He is an employee at the Internet Cafe. B. He is a student w...
【简答题】直接写出得数。 0.3×7= 0.66÷6= 10÷0.2= 0.25×4= + = - = 1- = + =
【简答题】竖式计算并验算 (1)3.906+0.66= (2)28.56-14.76=
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