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【单选题】
Having managed to survive the funeral and the solicitous attention of family and friends, we long to be left alone so we can stop being brave and give in to the ______.A.
concern
B.
cowardice
C.
demand
D.
grief
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举一反三
【单选题】___________arriving home she found her old friend alrendy there
A.
On
B.
For
C.
By
D.
With
【单选题】__________arriving home she found her oldfriend already there.
A.
On
B.
For
C.
By
D.
With
【单选题】更改当前幻灯片设计模板的方法是
A.
选择“设计”选项卡中的各种“主题”选项
B.
选择“视图”选项卡中的“幻灯片版式”命令
C.
选择“审阅”选项卡中的“幻灯片设计”命令
D.
选择“切换”选项卡中的“幻灯片版式”命令
【单选题】彩色多普勒血流显像仪，滤波器的主要作用是（）
A.
使频谱多普勒的幅度增加
B.
滤除高速血流
C.
滤除低速血流及低频噪声
D.
提高超声波穿透力
E.
避免对峰值流速及压差测值影响
【单选题】When she returned home, she found the window open and something ____.
A.
to steal
B.
losing
C.
missed
D.
stolen
【单选题】____ home, she found that she had left the key at the office.
A.
To have arrived
B.
To arrive
C.
arrived
D.
Arriving
【单选题】( ) home, she found that she had left the key at the office.
A.
To have arrived
B.
To arrive
C.
Arrived
D.
Arriving
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