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搜题
【单选题】
下列哪一项都是必需氨基酸:A.
缬氨酸、亮氨酸、谷氨酸
B.
氨酸、色氨酸、苏氨酸
C.
蛋氨酸、赖氨酸、丝氨酸
D.
苯丙氨酸、胱氨酸、酪氨酸
E.
精氨酸、组氨酸、甘氨酸
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】什么是年金，年金的特点是什么？
【单选题】____ we thank you for your enquiry, we regret being unable to make you an offer for the time being.
A.
while
B.
When
C.
As
D.
Since
【单选题】English is of great __________ in the modern world.
A.
important
B.
importance
C.
more important
D.
importantly
【简答题】English is of great ____ (important) in the modern world.
【单选题】Thank you for your enquiry of December 10. We confirm ____ your sample.
A.
having received
B.
receiving
C.
to have received
D.
to receive
【单选题】Her poor health limits her earning ( )能力,才能
A.
capture
B.
candidate
C.
capacity
D.
capital
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