【单选题】She ______ it but she was too lazy.
【单选题】She can speak quite fluent English.She____.
A.
must been in the U.S.A.for some time
B.
must have been in the U.S.A.for some time
C.
should have been in the U.S.A.for some time
D.
May be in the U.S.A.for some time
【简答题】I thought that she must have d_________told eve9. I thought that she must have d_________told everyone about my mark after promising not to.
【单选题】She must have told us a lie, because she looked____.
【多选题】划分一个周转轮系的判断有如下选项,其中正确的选项为( )。
C.
轮系中凡绕转动轴线转动的齿轮都属行星轮,其转动轴构件就属行星架
【多选题】划分一个周转轮系的判断有如下选项,其中正确的选项为( )。
【单选题】___________是指国家机关的权力必须受到法律的规制和约束,也就是要把权力关进制度的笼子里。
【单选题】( )是指国家机关的权利必须受到法律的规制和约束。
【单选题】导师在第二讲中提到画叶脉的时候先画中间的_1_,再画_2_,小叶脉仿佛从中间的主叶脉的线条中生长出来。还要注意它的_3_,不能比主叶脉_4_。还有一个很小的细节需要大家留意一下,就是小叶脉之间是_5_生长的。它 是对生的呢还是互生的呢?同学们要仔细观察
【单选题】药库接受了一批药品,其中需要在冷处贮存的是( )