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【单选题】
一定温度下，某容积恒定的密闭容器中发生如下可逆反应：CO(g)＋H 2 (g) C(s)＋H 2 O(g)；△H＜0以l mol CO和2 mol H 2 为起始反应物，t l 时达到平衡，生成0．6mol H 2 O(g)。t 2 时改变反应条件，化学反应速率(v)与时间(t)的关系如图所示。下列叙述正确的是
A.
起始时刻和t 1 达到平衡后气体的物质的量之比为4︰5
B.
后若加入少量碳，向逆反应方向移动
C.
平衡后若加入氢气，上述反应的△H会增大
D.
t 2 时改变的条件可能是增大了压强
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【单选题】对肩关节周围炎的论述,不正确的是
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肩关节疼痛、活动障碍
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【单选题】John, ______ the bet, had to pay for the dinner.
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【多选题】肩周炎又称________ ,是以肩关节疼痛和活动不便为主要症状的常见病症
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相关题目：
【判断题】肩周炎是肩关节周围炎的简称，主要症状为肩关节疼痛和运动功能障碍。()
A.
正确
B.
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查看完整题目与答案
【单选题】听力原文：If you had visited the museum, I bet you would never forget the local cultural tradition. The speaker is expressing
A.
his regret.
B.
his expectation.
C.
his certainty.
D.
his bet.
查看完整题目与答案
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A.
肩痛
B.
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C.
肌肉萎缩
D.
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E.
手臂麻木
查看完整题目与答案
【单选题】I bet that Mike wished you()him that earlier.
A.
told
B.
have told
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【单选题】听力原文：If I had gone to the , you bet I would have enjoyed seeing our team win. The speaker regretted having______.
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missed the .
B.
gone to the .
C.
won the .
D.
missed the bet.
查看完整题目与答案
【单选题】Lucas, ___ the bet, had to pay for the dinner.
A.
lost
B.
having lost
C.
losing
D.
having loss
查看完整题目与答案
【单选题】对肩关节周围炎的论述,不正确的是
A.
与老年退行性变及外伤．劳损等因素有关
B.
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C.
以肩关节的疼痛与功能障碍为主要症状
D.
是引起肩部疼痛的较常见原因之一
E.
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查看完整题目与答案
【单选题】肩关节周围炎是由于肩关节周围肌肉、肌腱、滑囊和关节囊等软组织的慢性炎症,主要症状为()。
A.
肩关节疼痛、活动障碍
B.
淤血肿胀
C.
肌肉萎缩
D.
弹响声
查看完整题目与答案
【单选题】John, ______ the bet, had to pay for the dinner.
A.
lost
B.
having lost
C.
losing
D.
having loss
查看完整题目与答案
【多选题】肩周炎又称________ ,是以肩关节疼痛和活动不便为主要症状的常见病症
A.
肩部慢性撞击损伤
B.
肩关节周围炎
C.
凝肩
D.
五十肩
查看完整题目与答案