Idiom
Sanjay is very different about passing the Civil Services Examination this year.

Very hopeful of
Reasonably certain of
Lacking self confidence about
Dead sure of

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Idiom
Select the correct statement about active and passive immunity.

The antibodies utilized in active immunity are acquired from another organism
A vaccination is an example of the introduction of passive immunity into the body
Immunological memory is established by passive immunization
Active and passive humoral immunity are both mechanisms of adaptive immunity that useantibodies

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