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【简答题】
何谓静息电位?简述神经细胞静息电位产生的离子机制。
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皮皮学刷刷变学霸
举一反三
【简答题】The secretary worked late into the night, (prepare) ______a long speech for the president.
【单选题】将4gNaOH溶液溶解在10ml水里，然后稀释成1L溶液，从中取出10ml，这10ml溶液的物质的量浓度是 [ ]
A.
1mol·L -1
B.
0．1 mol·L -1
C.
0．01 mol·L -1
D.
10 mol·L -1
【单选题】The secretary worked late into the night ， a long speech for the president ．
A.
． to prepare
B.
． preparing
C.
． prepared
D.
． was prepared
【单选题】将4gNaOH溶解在10mL水中，然后稀释成1L溶液，从中取出10mL，这10mL溶液的物质的量浓度是（ ）
A.
1mol·L － 1
B.
0.1 mol·L － 1
C.
0.01 mol·L － 1
D.
10 mol·L － 1
【简答题】浴比为1:10则表示1克织物用( ) A 10ml染料母液 B 10ml水 C 10ml工作液 D 10 ml水和 10ml染液
【简答题】#incclude int i=0 i++
【单选题】The secretary worked late into the night, _______ a long speech for the international conference. [ ]
A.
to prepare
B.
prepared
C.
preparing
D.
was preparing
【单选题】基础胃液量
【单选题】The secretary worked late into the night.She was preparing a long speech for the manager.(改写成现在分词作状语)
A.
The secretary worked late into the night,preparing a long speech for the manager.
B.
The secretary working late into the night,She was preparing a long speech for the manager.
C.
The secretary worked late into the night,she preparing a long speech for the manager.
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【单选题】基础胃液量