It’smorecorrecttosaythatAmericanswouldbe...someone’s__________.
It’smorecorrecttosaythatAmericanswouldbe...someone’s__________.
It’smorecorrecttosaythatAmericanswouldbeverycautiousofgivingacomplimentaboutsomeone’s__________.
It’smorecorrecttosaythatAmericanswouldbeverycautiousofgivingacomplimentaboutsomeone’s__________.
--Is this watch__________？--No，it isn' t. It' s__________. A: your, his B: yours，his C: you，his D: yours，she' s
--Is this watch__________？--No，it isn' t. It' s__________. A: your, his B: yours，his C: you，his D: yours，she' s
一Is this watch__________？一No，it isn' t. It' s__________. A: your; his B: yours; his C: you; his D: yours; she' s
一Is this watch__________？一No，it isn' t. It' s__________. A: your; his B: yours; his C: you; his D: yours; she' s
A qualified landscape proposal must encompass a s__________.
A qualified landscape proposal must encompass a s__________.
根据汉语意思和首字母提示，补全单词。首字母已给出，补全单词时无需再写，注意单词的形式。She looked different s__________.不知怎么地，她看上去变了。
根据汉语意思和首字母提示，补全单词。首字母已给出，补全单词时无需再写，注意单词的形式。She looked different s__________.不知怎么地，她看上去变了。
机械零件的强度条件可以写成____。 A: σ≤[σ],τ≤[τ]或Sσ≤[S]σ,Sτ≤[S]τ B: σ≥[σ],τ≥[τ]或Sσ≥[S]σ,Sτ≥[S]τ C: σ≤[σ],τ≤[τ]或Sσ≥[S]σ,Sτ≥[S]τ D: σ≥[σ],τ≥[τ]或Sσ≤[S]σ,Sτ≤[S]τ
机械零件的强度条件可以写成____。 A: σ≤[σ],τ≤[τ]或Sσ≤[S]σ,Sτ≤[S]τ B: σ≥[σ],τ≥[τ]或Sσ≥[S]σ,Sτ≥[S]τ C: σ≤[σ],τ≤[τ]或Sσ≥[S]σ,Sτ≥[S]τ D: σ≥[σ],τ≥[τ]或Sσ≤[S]σ,Sτ≤[S]τ
球面镜的物距为s，象距为s′，则横向放大率为（）。 A: s′/s B: s/s′ C: -s′/s D: -s/s′
球面镜的物距为s，象距为s′，则横向放大率为（）。 A: s′/s B: s/s′ C: -s′/s D: -s/s′
【单选题】在压力为 p 时 ,饱和水的熵为 s ′;干饱和蒸汽的熵为 s ′′。当湿蒸汽的干度0 <x<1 时 ,其熵为 s ,则() A.s′′ >s>s ′ B.s>s ′′> s ′ C.s<s ′ <s ′′ D. s ′ >s>s ′′ A. s″ >s>s ′ B. s>s ″> s ′ C. s ′ ″ D. s ′ >s>s ″
【单选题】在压力为 p 时 ,饱和水的熵为 s ′;干饱和蒸汽的熵为 s ′′。当湿蒸汽的干度0 <x<1 时 ,其熵为 s ,则() A.s′′ >s>s ′ B.s>s ′′> s ′ C.s<s ′ <s ′′ D. s ′ >s>s ′′ A. s″ >s>s ′ B. s>s ″> s ′ C. s ′ ″ D. s ′ >s>s ″
【单选题】下列分子的构型(R/S)是 () A. S,S,R B. S,S,S C. S,R,S D. R,S,S
【单选题】下列分子的构型(R/S)是 () A. S,S,R B. S,S,S C. S,R,S D. R,S,S