单项选择题

A．Taking photographs.
B．Enhancing images.
C．Mending cameras.
D．Painting pictures.
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单项选择题
A．Light is not an essential element to it.B．Life can form in very hot temperatures.C．Every form of life undergoes evolution.D．Oxygen is not needed for some life forms.
A．Light is not an essential element to it.
B．Life can form in very hot temperatures.
C．Every form of life undergoes evolution.
D．Oxygen is not needed for some life forms.
单项选择题
A．It could help people of all ages to avoid cancer.B．It was mainly meant for cancer patients.C．It might appeal more to viewers over 40.D．It was frequently interrupted by commercials.
A．It could help people of all ages to avoid cancer.
B．It was mainly meant for cancer patients.
C．It might appeal more to viewers over 40.
D．It was frequently interrupted by commercials.
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