是国宝龙虎尊。https://image.zhihuishu.com/zhs/o...9d8e273347ea5c7b.png
举一反三
- 是国宝龙虎尊。https://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/4f7b164b45414d349d8e273347ea5c7b.png
- 若产生主动土压力为Ea，被动上压力为Ep，所需的档土墙位移量分别为<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202004/1e8f0b9e0cb8465593753c5f11598176.png" >、<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202004/9088e679a4184965804bc72eeb0a0d41.png" >，则下述()是正确的。 A: Ea＜Ep，<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202004/7a1afdb198494646a3e13d5a5fc63803.png" >＞<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202004/9088e679a4184965804bc72eeb0a0d41.png" > B: Ea＞Ep，<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202004/7a1afdb198494646a3e13d5a5fc63803.png" >＜<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202004/1e329449603e4588bd4943ce452bde27.png" > C: Ea＞Ep，<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202004/1e8f0b9e0cb8465593753c5f11598176.png" >＞<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202004/9088e679a4184965804bc72eeb0a0d41.png" > D: Ea＜Ep，<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202004/7a1afdb198494646a3e13d5a5fc63803.png" >＜<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202004/9088e679a4184965804bc72eeb0a0d41.png" >
- 下列时间复杂度最好的是（）。 A: O<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202010/fa34894ec21a44e399feadbac71a8340.png" > B: O<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202010/525b0bb57bcb42cf9e998f6c6a933991.png" > C: O<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202010/80351fa4ddde48a997031c49dc07fa7f.png" > D: O<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202010/28bd9a50afb741ff8a4805c6d22066f0.png" >
- 下列离子属于9~17电子构型的是( )。 A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202007/98d5d4b38f664003989388c34b412dae.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202007/5d447bd56a6a4e5c899da3611c5592c3.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202007/c34f43d2aa684eac93ea994d37780085.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202007/0048373ac18e4dbebaeb3ad4687aacb3.png" />
- 配制pH≈7的缓冲溶液，应选择( ) A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202007/f91db91d906d4648a281e7e2414fecf4.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202007/d788ac460faf40348a1c3ad467417dd9.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202007/10b2abc3968d46fd8a7e9c276d6f0b19.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202007/cf120ba897744b3b9684f0365ded361e.png" />