皮皮学，免费搜题
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【单选题】
下列属于鱼类的是A.
娃娃鱼
B.
鲸鱼
C.
章鱼
D.
鳕鱼
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
【单选题】普萘洛尔治疗心绞痛的主要药理作用是
A.
阻断心脏β1受体，降低心肌细胞耗氧量
B.
加强心肌收缩力，加强心脏泵血功能
C.
扩张冠脉
D.
降血压，减低心脏前负荷
E.
降低左室壁张力
【单选题】When his father started questioning his explanation, he had to ____ more details for his mistakes.
A.
make of
B.
make for
C.
make up
D.
make into
【简答题】“We started as a group of friends with the same problem: difficulty in our personal life to manage our time, being always in a hurry.” This thought was recently offered by Bruno to explain the origin ...
【判断题】When Michael started to record music on his own, the group didn’t perform together anymore.
A.
正确
B.
错误
【简答题】He started his career working for a television station.
【单选题】下列哪项不是由雌激素减少所导致的
A.
促钙和磷沉积作用减弱
B.
促骨基质合成功能减弱
C.
拮抗甲状旁腺素作用减少
D.
降钙素分泌增加
E.
促进维生素D3合成及小肠钙吸收作用减小
【单选题】Mr. Li swimming for 3 hours, and his son an hour ago. [ ]
A.
has been; started
B.
have started; has started
C.
started; started
D.
has started; has started
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