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【单选题】
患者,女性,31岁,会计。喜食辛辣食物,平日体健,患痔疮4年,近期无痛性便血加重,在排便时肛门滴血,痔核脱出肛门外,排便后需用手才能还纳,还纳后不再脱出。以下出院指导中不正确的是A.
定时排便
B.
避免辛辣食物
C.
多休息,
D.
加强肛门括约肌舒缩功能练习
E.
每次排便后清洁肛皮肤
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皮皮学刷刷变学霸
举一反三
【简答题】已知 298K 时无限稀释的溶液中, Λ m ∞ (KCl)=194.86×10 -4 S.m 2 .mol -1 Λ m ∞ (NaCl) =126.45×10 -4 S.m 2 .mol -1 , 那么在 298K 的水溶液中, Λ m ∞ (K + ) - Λ m ∞ (Na + ) = ( ) S.m 2 .mol -1
【简答题】大树一般是指胸径大于 cm的乔木。
【单选题】3 For an noninverting amplifier, which is right?
A.
The input impedance is 0，the output impedance is infinity.
B.
The input impedance is 0，the output impedance is 0.
C.
The input impedance is infinity，the output impedance is infinity.
D.
The input impedance is infinity，the output impedance is 0.
【单选题】298 K时,无限稀释的 NH 4 Cl 水溶液中正离子迁移数 t + = 0.491。已知Λm(NH 4 Cl) = 0.0150 S·m 2 ·mol -1 ,则:
A.
λm(Cl - ) = 0.00764 S·m 2 ·mol -1
B.
λm(NH 4+ ) = 0.00764 S·m 2 ·mol -1
C.
淌度 U(Cl - ) = 737 m 2 ·s -1 ·V -1
D.
淌度 U(Cl - ) = 7.92×10-8 m 2 ·s -1 ·V -1
【单选题】According to Figure 2, which of the following statements best describes the relative amplitudes of the first p-waves to arrive at the seismograph and the first s-waves to arrive at the seismograph? Th...
A.
smaller than the amplitude of the first s-waves to arrive at the seismograph.
B.
larger than the amplitude of the first s-waves to arrive at the seismograph.
C.
nonzero, and the same as the amplitude of the first s-waves to arrive at the seismograph.
D.
zero, as is the amplitude of the first s-waves to arrive at the seismograph.
【单选题】The inverting and noninverting inputs to an op-amp are used to drive a(n) ( ) amplifier.
A.
inverting
B.
noninverting
C.
differential
D.
open-loop
【单选题】Using this scope to ______ your view can make it easier to see the distant targets.
A.
amplify
B.
extend
C.
magnify
D.
expand
【单选题】298K时，无限稀释的NH 4 Cl水溶液中正离子迁移数t+= 0.491。已知Λm（NH 4 Cl）=0.0150S·m 2 ·mol -1 ，则：（）
A.
λm（Cl - ）= 0.00764S·m 2 ·mol -1
B.
λm（NH 4 + ）= 0.00764S·m 2 ·mol -1
C.
淌度U（Cl - ）=&）= 73 m 2 ·S -1 ·V -1
D.
淌度U（Cl - ）=&）= 7.92×10-8m 2 ·S -1 ·V -1
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