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【单选题】
调速阀是用 ( ) 组合而成的A.
节流阀和定差减压阀串联
B.
节流阀和顺序阀串联
C.
节流阀 和定差减压阀并联
D.
节流阀和顺序阀并联
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】关于受精过程的叙述正确的是 [ ]
A.
获能后的精子与卵子相遇后，释放顶体酶穿过透明带进入放射冠
B.
透明带反应是防止多精入卵的第一道屏障
C.
精子与卵黄膜相互融合，精子入卵
D.
雄原核形成的同时，卵子完成减数第二次分裂
【简答题】新建一个文本文件 score.csv ,用来保存 10 名考生 3 门课程的成绩,内容如下: 考号 , 程序设计 , 细胞生物 , 生理学 10153450101, 72, 96, 88 10153450102, 68, 88, 73 10153450103, 63, 63, 66 10153450104, 95, , 65 10153450105, 89, 88, 57 1015345010...
【单选题】Jim was angry with Kimberly because ________.
A.
she won the scholarship , but he didn’t
B.
she told him not to apply for scholarship
C.
she won the scholarship, but told him that she didn’t
D.
she hurt him by saying that she won the scholarship
【单选题】Jim was angry with Kimberly because________.
A.
she won the scholarship, but he didn’t
B.
she told him not to apply for scholarship
C.
she won the scholarship, but told him that she didn’t
D.
she hurt him by saying that she won the scholarship
【简答题】简述长期大量应用糖皮质激素的不良反应及其何防治措施?
【单选题】Jim's father got very angry _______.
A.
with that he had done
B.
with what he had done
C.
at what he had done
D.
at that he had done
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