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【单选题】
<img title=28-A.jpg alt=28-A.jpg src=https://huaweicloudobs.ahjxjy.cn/29E854AAE4413900452551D8AF4DD444.jpg/>

<img title=28-1.jpg alt=28-1.jpg src=https://huaweicloudobs.ahjxjy.cn/B4EA15B84EA0B1618D188AB23682FFD8.jpg/>
<img title=28-2.jpg alt=28-2.jpg src=https://huaweicloudobs.ahjxjy.cn/7676C136DA01E88A9A65D75F2B40F506.jpg/>
<img title=28-3.jpg alt=28-3.jpg src=https://huaweicloudobs.ahjxjy.cn/A5F97D1AD1B0C43DB3B17705F40B877E.jpg/>
<img title=28-4.jpg alt=28-4.jpg src=https://huaweicloudobs.ahjxjy.cn/EB4AEBA23D97034663527D0FAA50F1FB.jpg/>
【单选题】
28.组成胸廓的骨骼包括

A.胸椎、肋和胸骨
B.胸椎、肋和肱骨
C.胸椎、肋和腰椎
D.胸椎、肋和肩胛骨
E.胸骨、肋和肩胛骨
【单选题】
A: Mr. Wang, Im very much impressed. Theres no need for further questions. B: [填空].

Really? Thats great
Sorry, I didnt mean to bother you
Thank you for your time
Its my pleasure
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/498F000149C46A1D946CDB617D01741F.png title=28.png alt=28.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/53C8522722C3DEAF6A5D8626CB9EA383.png title=28-1.png alt=28-1.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/37C35D25DBC01E1209AB39151137BA6E.png title=28-2.png alt=28-2.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/C21DA568086EED43429A3139709B0805.png title=28-3.png alt=28-3.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/42BBEEB825F0A9D5BF7EB1EC112955DE.png title=28-4.png alt=28-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/D15E15E6C4E28F30B8C66C712E13C1E1.png title=2-B.png alt=2-B.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/71F96B01EC42624D2F43333C279904D8.png title=2-1.png alt=2-1.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/434DC9367A7013D83A4C86FA0710357B.png title=2-2.png alt=2-2.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/CCB45D994475E244267423BA4E6B4A5E.png title=2-3.png alt=2-3.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/0127ABAECB8C07F3EAB3DF13073029B9.png title=2-4.png alt=2-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/814CCDF4B7D04F3C50A875847BA34904.png title=28.png alt=28.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/56CE37E4B20C8F4066014F01187974D0.png title=28-1.png alt=28-1.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/585EDA23ED6D89369DAD476208403567.png title=28-2.png alt=28-2.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/ACBD2D25D32E6296102DBD5B8DC8C983.png title=28-3.png alt=28-3.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/7A98A6818A4F84ED94ABF4B5D865D1B9.png title=28-4.png alt=28-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/EF722A6B863B74C5354A5F4B87EEEF72.png title=28.png alt=28.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/0340DFEE55628ABF2A635C2825A67977.png title=28-1.png alt=28-1.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/FDAF7F8FD22355D377EBE66F454A6457.png title=28-2.png alt=28-2.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/6BE646CE68B7A2CFCA1EEB2A05D066A6.png title=28-3.png alt=28-3.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/352D28D0A896A4D1BE800729F53E8201.png title=28-4.png alt=28-4.png/>
【单选题】
28. If it ____ fine tomorrow, we will go skating.

will be
is to be
is going to be
is
【单选题】
28.---Jane won the first prize in the concert. ---______.

Soshedid
Sodidshe
Soshedid,too
Sodidshe,too
【判断题】
4.2.5在竞争条件下,企业利润最大化的原则是MR=MC。( )

正确
错误