Idiom
An individual whose blood type is B may in an emergency, donate blood to a person whose blood type is

B or A
AB or A
A or O
AB or B

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Idiom
White blood cell act

As a medium for oxygen transport from lung to tissues
For clotting blood
As a defence against infection
As a source of energy

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Idiom
For each of the following sentences four alternatives are given. You are required to choose the correct meaning of the idiom or phrase given or underlined in the sentence. In life, we have to take the rough with the smooth.

be tough in order to be successful
make unpleasant things better
accept unpleasant as well as pleasant things
use pleasant words to make things smooth

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