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【单选题】
如果希望方法直接通过类名称访问,在定义时要使用的修饰符是
A.
static
B.
final
C.
abstract
D.
this
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【单选题】关于肺结核对妊娠的影响,下列哪项是错误的:
A.
肺结核患者除非同时患有生殖器结核,一般不影响受孕
B.
非活动性肺结核病变范围不大,对妊娠经过和胎儿发育影响不大
C.
活动性肺结核患者妊娠,可致流产、胎死宫内
D.
严重肺结核合并妊娠,围产儿死亡率可高达30%~40%
E.
结核病孕妇在产前不会将结核菌传给胎儿
【单选题】下列关于肺发育异常的X线表现,哪项是错误的:
A.
一侧肺不发育患侧胸部密度均匀增高
B.
支气管造影显示患侧支气管缺如或发育不良
C.
肺叶发育不全时肺叶体积缩小、密度增高
D.
血管造影显示患侧动脉主干及其分支正常
E.
支气管造影肺叶支气管细小或闭塞
【单选题】用一连续精馏塔分离某二元混合物。已知进料量为60kmol/h,釜残液的流量为25kmol/h,提馏段的上升蒸气量为70kmol/h,精馏塔的操作回流比为1,则该精馏塔的进料热状况为( )。
A.
饱和蒸气进料
B.
冷液进料
C.
气液混合物进料
D.
饱和液体进料
【单选题】分离某二元混合物,进料量为10mol/h,组成x F 为0.6,若要求馏出液组成x D 不小于0.9,则最大馏出量为( )。
A.
6.67mol/h ;
B.
6mol/h ;
C.
9mol/h ;
D.
不定
【简答题】Once upon a time, a man was walking on a mountain when he found an incredible cave with all kinds of treasure inside it. So he gave up his job, his home, and his friends, and spent all his time guardi...
【单选题】分离某二元混合物,进料量为 100kmol/h,x F =0.6,要求 馏 出液组成 x D 不小于 0 . 9, 则 塔顶最大产量为 ()。
A.
60kmol/h
B.
66.7kmol/h
C.
90kmol/h
D.
不确定
【单选题】关于肺结核对妊娠的影响,下列哪项是错误的
A.
活动性肺结核患者妊娠,可致流产、胎死宫内
B.
非活动性肺结核病变范围不大,对妊娠经过和胎儿发育影响不大
C.
肺结核患者除非同时患有生殖器结核,一般不影响受孕
D.
严重肺结核合并妊娠,围产儿死亡率可高达30%~40%
E.
结核病孕妇在产前不会将结核菌传给胎儿
【单选题】The survey information upon which a chart is based is found ______.
A.
at the top center of the next line
B.
near the chart title
C.
at the lower left corner
D.
at any convenient location
【简答题】Once upon a time, some children were playing at the seaside when they found a turtle. They began to beat the turtle. Just at that time, a young man came and shouted, “Stop!” The children ran 36 quickl...
【单选题】Turning around, he found her eyes _________ upon his face with an eager expression.
A.
fixing
B.
to fix
C.
fixed
D.
were fixing
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