Có bao nhiêu số x có ba chữ số thoả mãn x < 105

A. 5

B. 4

C. 3

D. 2

Read the following passage and choose the best answer for each blank.

Further education in Britain means education after GCSE exams (26) ______ around the age of 16. It includes courses of study (27) ______ to A-levels which students do at their school or college. Some students go (28) ______ to a college of further education which (29) ______ a wide range of full or part-time courses. Further education also includes training for professional (30) ______in nursing, accountancy, and management and in (31) ______ such as arts and music. The term (32) ______ education is used to refer to degree courses at universities. The British government is keen to (33) ______more young people to remain in education as (34) ______as possible in order to build up a more highly (35) ______, better educated workforce.

Questione 30:

A. degree

B. diploma

C. certificate

D. qualifications

Cho khối tứ diện ABCD có AB = x, AC = AD = CB = DB = 2 3  khoảng cách giữa AB,CD bằng 1. Tìm x, để khối tứ diện ABCD có thể tích lớn nhất.

A.  x = 11

B.  x = 13

C.  x = 26

D.  x = 22

Đặt tính rồi tính

d) 24,6 x 3,4