Network
Pembahasan:
Kelainan pada tulang di mana tulang belakang melengkung ke samping kiri atau kanan
disebut skoliosis.
12. Unsur-unsur periode ketiga terdiri dari Na, Mg, Al, Si, P, S, Cl, dan Ar. Berdasarkan konfigurasi elektronnya, maka dapat dinyatakan bahwa
....
A. jari-jari atom Na paling kecil
B. logam Na paling sukar bereaksi
C. keelektronegatifan Ar paling besar
D. S, P, dan Cl cenderung membentuk basa
E. energi ionisasi Mg lebih besar daripada Al
Jawaban: C
Untuk pembahasannya silahkan lihat pada file PDF di akhir artikel.
Influenza A/H5N1 has evolved into a flu virus strain that ... (13) ... more species than any previously known strain, is deadlier than any previously known strain, and continues to evolve, becoming both more widespread and more deadly. ... (14) ... caused Robert G. Webster, a ... (15) ... expert on avian flu, to publish an article titled “The world is teetering on the edge of a pandemic that could kill a large fraction of the human population” in American Scientist.
13. ….
A. infected D. had infected
B. will infect E. is infected
C. infects
Jawaban: C
14. ….
A. That D. These
B. This E. Those
C. The
Jawaban: B
