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【判断题】
设(X,Y)服从二元正态分布，X~N(1,4)，Y~N(0,1)，且X与Y不相关，令Z=2X-Y+1,则Z~ N(3, 15).A.
正确
B.
错误
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【单选题】Which of the following statements is false？
A.
Teachers need to understand their students’ reasons for writing .
B.
Teachers need to provide many opportunities for students to write.
C.
Teachers must write feedback in the margins .
D.
Teachers cannot make students misunderstand feedback as “correcting” their writing.
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【单选题】Which of the following is not a coordinating conjunction?
A.
for
B.
yet
C.
when
D.
so
【单选题】Which of the following is true?
A.
The woman only enjoyed food during her stay in France.
B.
French food is not allowed to touch.
C.
French food is a kind of art.
【简答题】根据句意,选用括号内适当的词填空 1).—How many (chair/chairs) are there in the house? ---There are two. 2).—Are there (any/some) flowers in the room? ---Yes, there are. 3).The ball is (under/behind)the door. 4).I can ...
【单选题】Which of the following is true?
A.
a. Roger knows Linda better than Linda’s mother
B.
b. Linda wants to go to college but she can’t get a scholarship.
C.
c. Jenny will most likely take Roger’s advice.
D.
d. Linda is actually quite serious about college.
【简答题】张某，男，32 岁。昏倒在厕所内，即送医院，入院后检查，T36.5C，P90 次/分。Bp120/80mmHg。 患者意识模糊，双侧瞳孔对光没反射存在，课件右侧**皮下血肿，急诊 CT 扫描显示： 实质内未见明显异常，右侧同时 CT 报告注明，患者配合度差，CT 扫描图像课件运动*影， 建议随访观察，由于急诊室留观床位已满，患者家属不愿意住在走廊加床观察，强烈要求带患者回家，第二天中午患者家属在家...
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