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搜题
【单选题】
对于胸腺依赖性抗原，下列哪项描述是正确的A.
需要在辅助性T细胞辅助下使B细胞活化，增殖，分化为浆细胞
B.
需要在抑制性T细胞辅助下使B细胞活化，增殖，分化为浆细胞
C.
不须要T细胞的辅助，能直接使B细胞活化，增殖，分化为浆细胞
D.
不须要抗原递呈细胞，极微量就能使B细胞活化，增殖，分化为浆细胞
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举一反三
【单选题】Shortly after the tea Leopold heard the music from upstairs. He was astonished because______.
A.
Wolfgang loved the piece so much
B.
Wolfgang was playing in the darkness
C.
Marianne had never played the piece so beautifully
D.
Marianne was washing dishes in the kitchen
【单选题】在PowerPoint 2007 中,插入超级链接时,所链接的目标不能是( )。
A.
另一个演示文稿
B.
某张幻灯片中的某个对象
C.
同一演示文稿的某一张幻灯片
D.
其他应用程序的文档
【简答题】团体旅客乘坐火车旅行，必须在开车（）小时以前办理退票手续。 A、2 B、12 C、24 D、48
【多选题】在PowerPoint2007中，可以为选定文字加入超链接的方法有（）。
A.
单击“插入”选项卡/“链接”区域的【超链接】命令
B.
单击“开始”选项卡/“编辑”区域的【插入超链接】命令
C.
按键盘中的Ctrl+K组合键
D.
按键盘中的Shift+K组合键
【单选题】 某分析人员进行吸光光度法分析时,误将参比溶液的透射比调至 90% 而不是 100%,在此条件下,测得试样溶液的透射比为 35%,则该试样溶液的正确透射比是
A.
32.1%
B.
34.5%
C.
36.0%
D.
38.9%
【单选题】______ he explained it to me did I make sense of what he said.
A.
Hardly had
B.
Not until
C.
Shortly after
D.
No sooner
【单选题】—Did your father phone you shortly after the accident? —No, it was a fortnight ________ he gave me a phone call.
A.
since
B.
when
C.
while
D.
before
【单选题】shortly after tea Leopold heard the music from upstairs. He was astonished because ______.
A.
Wolfgang loved the piece so much
B.
Wolfgang was playing in the darkness
C.
Marianne had never played the piece so beautifully
D.
Marianne was washing dishes in the kitchen
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