问题
选择题
We should never ______ ourselves with book knowledge only.
A．content
B．contract
C．contrast
D．Contain
答案
A
考查动词;A. Content使...满足，content onesef with对 ...很满意，B. contract缩小；订合同；C. Contrast对比D. Contain包括，句意是：我们不该只满足于书本知识。选A。