皮皮学，免费搜题
登录
搜题
【单选题】
下列哪种为人体非必需氨基酸?( )A.
精氨酸
B.
缬氨酸
C.
苯丙氨酸
D.
酪氨酸
E.
半胱氨酸
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】12明清时期被称为茶器“双星”的是（ ）
【判断题】Most offices also have a kitchen, where their employees can refresh themselves with cups of coffee or tea and have a break.
A.
正确
B.
错误
【单选题】关于妊娠期母体生理变化的描述, 错误的 是
A.
血容量在妊娠32～34周达高峰
B.
妊娠晚期易发生外阴及下肢静脉曲张
C.
子宫峡部在妊娠后期形成子宫下段
D.
妊娠期孕妇血液处于低凝状态
E.
妊娠期卵巢停止排卵
【单选题】In most offices today, _______________________.
A.
most people are going to work at home.
B.
people didn’t travel as much from city to city.
C.
there will probably be cities in space.
D.
people work more than 40 hours a week.
【简答题】The furniture in Google offices is different to that in most offices.
【单选题】While skyscraper offices and elegant apartment blocks remain the public face of most major cities, these cities also have a mass of secret tunnels and hidden pipes below______which keep everything wor...
A.
land
B.
ground
C.
soil
D.
earth
相关题目：