Tiny atomic electric batteries have certain advantages over the _______ storage batteries.
A.universal
B.inclusive
C.indefinite
D.conventional
A.universal
B.inclusive
C.indefinite
D.conventional
Atomic energy is going to have a______effect on the development of industry.
A.feasible
B.profound
C.painful
D.compound
The underlined part "this tiny human" in Paragraph 2 refers to ______.
A.a chimp
B.Flores Human
C.Homo sapiens
D.Homo erectus
Brittle materials have which of the following characteristics()
A.they undergo a lot of permanent deformation before fracturing
B.they tend to have a very ordered atomic structure
C.they respond poorly to tensile forces
D.A and B
A.store
B.secure
C.provide
D.ensure
A.the current in one place is not strong enough to give a shock
B.the fish's electric cells are filled with jelly-like substance
C.to complete the circuit, you have to touch the fish in two places
D.a torpedo's electric cells contain more than one electric plates
All was quiet the whole night ______ the light noise given by the electric fan.
A.besides
B.except that
C.beside
D.except for
A.inside the earth
B.inside earth
C.inside an earth
D.on earth
We know from the passage that ______.
A.exposure to even tiny amounts of radiation is fatal
B.the effect of exposure to radiation is slow in coming
C.radiation is avoidable in space exploration
D.astronauts in spacesuits needn't worry about radiation damage
The reason why the electric eel is able to give more powerful shock is that ______.
A.the working system of the electric plates in the eel is the most effective
B.the working system of the electric plates in the eel is far inferior to those in the torpedo
C.compared with those in the torpedo, the working system of, electric plates in the eel is more direct and efficient
D.compared with other electric fish, the eel possesses much more electric plates
A.satisfactory
B.satisfy
C.satisfaction
D.insatisfactory