【C16】A．consideringB．asC．givenD．by

【C16】A．toB．asC．forD．by

【C3】A．forB．asC．inD．by

【C16】A．exposed toB．discovered byC．experimented byD．absorbed by

【C16】A．by airB．by seaC．by handD．by land

【C16】A．soB．asC．muchD．not

【C7】A．forB．asC．withD．by