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【简答题】
图示系统在A、B两处设置约束,并受力F作用而平衡。其中A为固定铰支座,今欲使其约束力的作用线在AB成b=135°角,则B处应设置何种约束 如何设置?请举一种约束.
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【单选题】In __________ review off 44 studies, American researchers found that men and women who ate six key foods daily cut the risk of __________ heart disease by 76%. _______
A.
a; the
B.
the; a
C.
a; 不填
D.
不填; a
【单选题】观察药物对某种细菌生长抑制的结果如下:0 μg/ml (+),2 μg/ml (+),4 μg/ml (+),8 μg/ml (+),16 μg/ml (-),32 μg/ml (-),64 μg/ml (-),128 μg/ml (-)。这种药物的MIC是:
A.
4 μg/ml
B.
8 μg/ml
C.
16 μg/ml
D.
128 μg/ml
【单选题】观察药物对某种细菌生长抑制的结果:0 μg/ml (+), 2 μg/ml (+), 4 μg/ml (+), 8 μg/ml (+), 16 μg/ml (-), 32 μg/ml (-), 64 μg/ml (-), 128 μg/ml (-) 。这种药物的MIC是( ) μg/ml 。
A.
16
B.
8
C.
32
D.
128
【单选题】Which of the following statements is proposed by researchers?
A.
Later-boms do not compete for attention.
B.
First-borns tend to become rebels.
C.
Later-boms are prone to diseases.
D.
First-borns achieve more than younger ones.
【单选题】观察药物对某种细菌生长抑制的结果:0 μg/ml (+), 2 μg/ml (+), 4 μg/ml (+), 8 μg/ml (+), 16 μg/ml (-), 32 μg/ml (-), 64 μg/ml (-), 128 μg/ml (-) 。这种药物的MIC是( ) μg/ml 。 注:+ 代表生长 -代表无生长现象
A.
16
B.
32
C.
64
D.
128
【单选题】观察药物对某种细菌生长抑制的结果:0 μg/ml (+), 2 μg/ml (+), 4 μg/ml (+), 8 μg/ml (+), 16 μg/ml (-), 32 μg/ml (-), 64 μg/ml (-), 128 μg/ml (-) 。这种药物的MIC是() μg/ml 。
A.
16
B.
32
C.
64
D.
128
【单选题】[单-内科护理学] 患者70岁,患高血压6年。晨起口齿不清,口角歪斜,左侧肢体活动障碍4天。为明确诊断,应做的检查是
A.
脑电图检查
B.
脑血管造影
C.
头部CT扫描
D.
腰穿脑脊液检查
E.
脑超声波检查
【单选题】According to the researchers, what is wrong with public art at the moment?
A.
It is in old-fashioned styles.
B.
It irritates the public.
C.
It does not stand out enough.
D.
It does not make travelers relaxed.
【判断题】单人套路中后退步第一个步子要“跟拖”。
A.
正确
B.
错误
【单选题】A salty diet may increase the risk of stomach cancer ________ 10 percent, South Korean researchers found in a study of more than 2 million people.
A.
at
B.
to
C.
by
D.
for
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