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【单选题】
一、二等水准路线跨越、河，当视线长度大于（），应根据视线长度和仪器设备等情况，选用规范规定的相应方法进行跨河水准测量。A.
50
B.
100
C.
150
D.
200
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举一反三
【单选题】Wolf is a 30 years old man who had a history of peptic ulcer. He Suddenly suffered for severe pain on the upper abdomen for 5 hours, accompanied by sweating, irritability, and taking the antacids coul...
A.
bowel sounds disappeared.
B.
abdominal muscle tension.
C.
abdominal percussion note was tympany.
D.
positive abdominal shifting dullness.
E.
decreased abdominal breathing.
【单选题】Wolf is a 30 years old man who had a history of peptic ulcer. He Suddenly suffered for severe pain on the upper abdomen for 5 hours, accompanied by sweating, irritability, and taking the antacids coul...
A.
abdominal muscle tension
B.
abdominal percussion note was tympany
C.
positive abdominal shifting dullness
D.
decreased abdominal breathing
E.
bowel sounds disappeared
【单选题】Changes in irritability after tissue excitation, which of the following is not in it ( )
A.
absolute refracrory period
B.
relative refractory period
C.
supranormal period
D.
rest period
E.
subnormal period
【单选题】Changes in irritability after tissue excitation, which of the following is not in it ( )
A.
absolute refracrory period
B.
relative refractory period
C.
supranormal period
D.
Rest period
E.
subnormal period
【单选题】What is the major landmark of puberty for females ?
A.
beginning of menstruation
B.
anxiety
C.
irritability
D.
beginning of growing
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