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A.Electron

B.Proton

C.X ray

D.neutron

A、Formation of ATP

B、Ionization of water

C、Excitement of an electron of chlorophyll a by a photon of light

D、Attachment of carbon dioxide to five carbon sugar

A.2.00243 nm

B.7.67945 nm

C.5.56730 nm

D.9.45891 nm

A.5.41 eV

B.4.32 eV

C.7.95 eV

D.1.73 eV

A.357 nm

B.15 mm

C.49 fm

D.91.2 nm

A、Ionization potential of hydrogen called zero loss peak

B、Plasmon loss peak called zero loss peak

C、Energy of primary electron beam taken as zero loss peak

D、Fermi level of sample taken as the reference, zero loss peak

A．The unit membrane is the cell membrane

B．The unit membrane is a membrane structure that can only be seen under electron microscopy

C．The structure of “two shades and one light” is presented under electron microscope

D．Liposome membrane is also a unit membrane structure under electron microscopy

A.n

B.n and l

C.l

D.n, l and m

A、To amplify electron signal via electron multiplication

B、To compensate negative charges deposited on samples by electron beams

C、To limit desorption of water in biological samples

D、To provide high contrast images and eliminate conductive coatings at observation of insulating samples

E、All above

What are (or is) not the conditions on which the substitutional solid solution form？

A) The solute atoms and the solvent atoms are of similar size. Specifically, the size oftheir atoms do not differ by more than 15%

B) The interstitial atoms are sufficiently small

C) The electron configurations ofthe solute atoms and the solvent atoms are comparable

D) The solute atoms and the solvent atoms have a common crystalline structure