A.structures
B.strengths
C.strategies
D.strokes
What can the combined dots represent?
A.both letters and words
B.only individual words
C.only letters of the alphabet
A.forward, backwards
B.upward, downward
C.backwards, forwards
D.downward, upward
A、absorb ink well
B、show clearly the lines and strokes
C、be hard to be creased and corroded
D、come in various shapes and can be made of various materials
How can quantum dots be used to confirm diseases?
A.By traditionally looking at a person's blood under a microscope.
B.By letting a person take some kind of medicine.
C.By lighting up in the presence of a targeted molecule.
D.By subjecting a person to an X-ray examination.
A.You can buy me a drink
B.I need a pair of pants
C.I'm looking for a sports shirt
D.please show me that tie, the dark one with white dots
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