心主神志的物质基础是
A．营气
B．宗气
C．津液
D．精液
E．血液
参考答案：E
Jenny hopes that Mr. Smith will suggest a good way to have her written English _____ in a short period. [ ]
A. improved
B. improving
C. to improve
D. improve
黄瓜的种子属于（）。
A.有胚乳
B.无胚乳
