皮皮学,免费搜题
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【单选题】
下列哪项可使心室肌传导加快
A.
河豚毒
B.
ATP供应不足
C.
Ca2+通道阻断剂
D.
0期Na+内流加快
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举一反三
【单选题】第六章 下列各项中,与财务报表层次重大错报风险评估最相关的是( )。
A.
被审单位应收账款周转率呈明显下降趋势
B.
被审单位持有大量高价值且易被盗窃的资产
C.
被审单位的生产成本计算过程相当复杂
D.
被审单位控制环境薄弱
【单选题】She was soon out of breath, but she continued ______.
A.
run
B.
ran
C.
runnning
D.
in running
【简答题】Ellen Parker was worried about her health. She could not walk very quickly and it was difficult for her to climb stairs. She was soon out of breath. “I suppose I had better go to the doctor,” she thou...
【简答题】She got so angry that she ran after them.She was soon________,  but she continued to run. [     ] A . out of sight B. out of breath C. in sight D. in breath
【单选题】She got so angry that she ran after them. She was soon , but she continued to run. [     ]
A.
under her breath
B.
out of breath
C.
recover her breath
D.
hold her breath
【单选题】She got so angry that she ran after them.She was soon________,but she continued to run.
A.
out of sight
B.
out of breath
C.
in sight
D.
in breath
【多选题】中国餐饮业的历史发展主要经历了旧石器时期、新石器时期( )。
A.
青铜器时期
B.
铁器时期
C.
商周时期
D.
陶器时期
【判断题】为满足加工要求,定位误差应小于或等于工序尺寸公差。
A.
正确
B.
错误
【判断题】同功酶指能催化同一种化学反应,但其酶蛋白本身的分子结构组成却有所不同的一组酶。
A.
正确
B.
错误
【判断题】茎内初生维管束的数目不一定与根内初生韧皮部的束数相同。
A.
正确
B.
错误
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